diff --git a/beacon_chain/beacon_chain_db_immutable.nim b/beacon_chain/beacon_chain_db_immutable.nim
index ed7c1ac44..49676d380 100644
--- a/beacon_chain/beacon_chain_db_immutable.nim
+++ b/beacon_chain/beacon_chain_db_immutable.nim
@@ -15,7 +15,7 @@ import
   ./spec/[eth2_ssz_serialization, eth2_merkleization]
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to a phase0 BeaconState for in-place SSZ reading and writing
   Phase0BeaconStateNoImmutableValidators* = object
     # Versioning
@@ -69,7 +69,7 @@ type
     current_justified_checkpoint*: Checkpoint
     finalized_checkpoint*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#beaconstate
   # Memory-representation-equivalent to an Altair BeaconState for in-place SSZ
   # reading and writing
   AltairBeaconStateNoImmutableValidators* = object
diff --git a/beacon_chain/beacon_clock.nim b/beacon_chain/beacon_clock.nim
index 0833bc90d..f830c4484 100644
--- a/beacon_chain/beacon_clock.nim
+++ b/beacon_chain/beacon_clock.nim
@@ -25,7 +25,7 @@ type
     ## which blocks are valid - in particular, blocks are not valid if they
     ## come from the future as seen from the local clock.
     ##
-    ## https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/fork-choice.md#fork-choice
+    ## https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/fork-choice.md#fork-choice
     ##
     # TODO consider NTP and network-adjusted timestamps as outlined here:
     #      https://ethresear.ch/t/network-adjusted-timestamps/4187
diff --git a/beacon_chain/consensus_object_pools/README.md b/beacon_chain/consensus_object_pools/README.md
index d6f28130b..a2dede398 100644
--- a/beacon_chain/consensus_object_pools/README.md
+++ b/beacon_chain/consensus_object_pools/README.md
@@ -5,11 +5,11 @@ This folder holds the various consensus object pools needed for a blockchain cli
 Object in those pools have passed the "gossip validation" filter according
 to specs:
 - blocks: https://github.com/ethereum/consensus-specs/blob/v1.0.1/specs/phase0/p2p-interface.md#beacon_block
-- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 - voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.0.1/specs/phase0/p2p-interface.md#voluntary_exit
-- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attester_slashing
-- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#proposer_slashing
+- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attester_slashing
+- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#proposer_slashing
 
 After "gossip validation" the consensus objects can be rebroadcasted as they are optimistically good, however for internal processing further verification is needed.
 For blocks, this means verifying state transition and all contained cryptographic signatures (instead of just the proposer signature).
diff --git a/beacon_chain/consensus_object_pools/spec_cache.nim b/beacon_chain/consensus_object_pools/spec_cache.nim
index 032fa3fe6..903a6408c 100644
--- a/beacon_chain/consensus_object_pools/spec_cache.nim
+++ b/beacon_chain/consensus_object_pools/spec_cache.nim
@@ -22,7 +22,7 @@ export
 func count_active_validators*(epochInfo: EpochRef): uint64 =
   epochInfo.shuffled_active_validator_indices.lenu64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_committee_count_per_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_committee_count_per_slot
 func get_committee_count_per_slot*(epochInfo: EpochRef): uint64 =
   get_committee_count_per_slot(count_active_validators(epochInfo))
 
@@ -30,7 +30,7 @@ iterator get_committee_indices*(epochRef: EpochRef): CommitteeIndex =
   for i in 0'u64..<get_committee_count_per_slot(epochRef):
     yield CommitteeIndex(i)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_committee
 iterator get_beacon_committee*(
     epochRef: EpochRef, slot: Slot, index: CommitteeIndex): ValidatorIndex =
   ## Return the beacon committee at ``slot`` for ``index``.
@@ -43,7 +43,7 @@ iterator get_beacon_committee*(
     committees_per_slot * SLOTS_PER_EPOCH
   ): yield idx
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee*(
     epochRef: EpochRef, slot: Slot, index: CommitteeIndex): seq[ValidatorIndex] =
   ## Return the beacon committee at ``slot`` for ``index``.
@@ -56,7 +56,7 @@ func get_beacon_committee*(
     committees_per_slot * SLOTS_PER_EPOCH
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_committee
 func get_beacon_committee_len*(
     epochRef: EpochRef, slot: Slot, index: CommitteeIndex): uint64 =
   ## Return the number of members in the beacon committee at ``slot`` for ``index``.
@@ -70,7 +70,7 @@ func get_beacon_committee_len*(
     committees_per_slot * SLOTS_PER_EPOCH
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_attesting_indices
 iterator get_attesting_indices*(epochRef: EpochRef,
                                 data: AttestationData,
                                 bits: CommitteeValidatorsBits):
@@ -105,7 +105,7 @@ func get_attesting_indices_one*(epochRef: EpochRef,
       inc i
     res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_attesting_indices
 func get_attesting_indices*(epochRef: EpochRef,
                             data: AttestationData,
                             bits: CommitteeValidatorsBits):
@@ -114,7 +114,7 @@ func get_attesting_indices*(epochRef: EpochRef,
   for idx in get_attesting_indices(epochRef, data, bits):
     result.add(idx)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
 proc is_valid_indexed_attestation*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     epochRef: EpochRef,
@@ -159,7 +159,7 @@ func makeAttestationData*(
 
   doAssert current_epoch == epochRef.epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.uint64,
@@ -171,7 +171,7 @@ func makeAttestationData*(
     )
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#validator-assignments
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#validator-assignments
 iterator get_committee_assignments*(
     epochRef: EpochRef, validator_indices: HashSet[ValidatorIndex]):
     tuple[subcommitteeIdx: CommitteeIndex,
diff --git a/beacon_chain/eth1/eth1_monitor.nim b/beacon_chain/eth1/eth1_monitor.nim
index 748cec9b4..4b0b32439 100644
--- a/beacon_chain/eth1/eth1_monitor.nim
+++ b/beacon_chain/eth1/eth1_monitor.nim
@@ -288,7 +288,7 @@ template toGaugeValue(x: Quantity): int64 =
 #  doAssert SECONDS_PER_ETH1_BLOCK * cfg.ETH1_FOLLOW_DISTANCE < GENESIS_DELAY,
 #             "Invalid configuration: GENESIS_DELAY is set too low"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#get_eth1_data
 func compute_time_at_slot(genesis_time: uint64, slot: Slot): uint64 =
   genesis_time + slot * SECONDS_PER_SLOT
 
diff --git a/beacon_chain/gossip_processing/README.md b/beacon_chain/gossip_processing/README.md
index 76e5c0574..691c46386 100644
--- a/beacon_chain/gossip_processing/README.md
+++ b/beacon_chain/gossip_processing/README.md
@@ -9,12 +9,12 @@ This folder holds a collection of modules to:
 
 Gossip validation is different from consensus verification in particular for blocks.
 
-- Blocks: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_block
+- Blocks: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_block
 - Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.0.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attestation-subnets
-- Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#voluntary_exit
-- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#proposer_slashing
-- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attester_slashing
+- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attestation-subnets
+- Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#voluntary_exit
+- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#proposer_slashing
+- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attester_slashing
 
 There are multiple consumers of validated consensus objects:
 - a `ValidationResult.Accept` output triggers rebroadcasting in libp2p
diff --git a/beacon_chain/networking/eth2_network.nim b/beacon_chain/networking/eth2_network.nim
index 1aee79695..fda6713a9 100644
--- a/beacon_chain/networking/eth2_network.nim
+++ b/beacon_chain/networking/eth2_network.nim
@@ -166,7 +166,7 @@ type
   MounterProc* = proc(network: Eth2Node) {.gcsafe, raises: [Defect, CatchableError].}
   MessageContentPrinter* = proc(msg: pointer): string {.gcsafe, raises: [Defect].}
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#goodbye
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#goodbye
   DisconnectionReason* = enum
     # might see other values on the wire!
     ClientShutDown = 1
@@ -1791,8 +1791,8 @@ proc getPersistentNetKeys*(rng: var BrHmacDrbgContext,
 
 func gossipId(
     data: openArray[byte], altairPrefix, topic: string, valid: bool): seq[byte] =
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#topics-and-messages
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/p2p-interface.md#topics-and-messages
   const
     MESSAGE_DOMAIN_INVALID_SNAPPY = [0x00'u8, 0x00, 0x00, 0x00]
     MESSAGE_DOMAIN_VALID_SNAPPY = [0x01'u8, 0x00, 0x00, 0x00]
@@ -2066,7 +2066,7 @@ proc subscribeAttestationSubnets*(
 
 proc unsubscribeAttestationSubnets*(
     node: Eth2Node, subnets: AttnetBits, forkDigest: ForkDigest) =
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attestations-and-aggregation
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attestations-and-aggregation
   # Nimbus won't score attestation subnets for now; we just rely on block and
   # aggregate which are more stable and reliable
 
@@ -2075,7 +2075,7 @@ proc unsubscribeAttestationSubnets*(
       node.unsubscribe(getAttestationTopic(forkDigest, SubnetId(subnet_id)))
 
 proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#metadata
   if node.metadata.attnets == attnets:
     return
 
@@ -2083,7 +2083,7 @@ proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
   node.metadata.attnets = attnets
 
   # https://github.com/ethereum/consensus-specs/blob/v1.0.1/specs/phase0/validator.md#phase-0-attestation-subnet-stability
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attestation-subnet-bitfield
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attestation-subnet-bitfield
   let res = node.discovery.updateRecord({
     enrAttestationSubnetsField: SSZ.encode(node.metadata.attnets)
   })
diff --git a/beacon_chain/rpc/rest_config_api.nim b/beacon_chain/rpc/rest_config_api.nim
index 9bdae3179..78199399e 100644
--- a/beacon_chain/rpc/rest_config_api.nim
+++ b/beacon_chain/rpc/rest_config_api.nim
@@ -162,7 +162,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           DEPOSIT_CONTRACT_ADDRESS:
             $node.dag.cfg.DEPOSIT_CONTRACT_ADDRESS,
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#constants
           # GENESIS_SLOT
           # GENESIS_EPOCH
           # FAR_FUTURE_EPOCH
@@ -196,7 +196,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
             "0x" & ncrutils.toHex(
               uint32(DOMAIN_AGGREGATE_AND_PROOF).toBytesLE()),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#constants
           TIMELY_SOURCE_FLAG_INDEX:
             "0x" & ncrutils.toHex([byte(TIMELY_SOURCE_FLAG_INDEX)]),
           TIMELY_TARGET_FLAG_INDEX:
@@ -226,7 +226,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
               uint32(DOMAIN_CONTRIBUTION_AND_PROOF).toBytesLE()),
           # PARTICIPATION_FLAG_WEIGHTS
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#constants
           TARGET_AGGREGATORS_PER_COMMITTEE:
             Base10.toString(TARGET_AGGREGATORS_PER_COMMITTEE),
           RANDOM_SUBNETS_PER_VALIDATOR:
@@ -236,7 +236,7 @@ proc installConfigApiHandlers*(router: var RestRouter, node: BeaconNode) =
           ATTESTATION_SUBNET_COUNT:
             Base10.toString(uint64(ATTESTATION_SUBNET_COUNT)),
 
-          # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#constants
+          # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#constants
           TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE:
             Base10.toString(uint64(TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE)),
           SYNC_COMMITTEE_SUBNET_COUNT:
diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 7aedec569..6b84ef91a 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -19,7 +19,7 @@ import
 
 export extras, forks, validator
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#increase_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#increase_balance
 func increase_balance*(balance: var Gwei, delta: Gwei) =
   balance += delta
 
@@ -29,7 +29,7 @@ func increase_balance*(
   if delta != 0: # avoid dirtying the balance cache if not needed
     increase_balance(state.balances[index], delta)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#decrease_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#decrease_balance
 func decrease_balance*(balance: var Gwei, delta: Gwei) =
   balance =
     if delta > balance:
@@ -44,8 +44,8 @@ func decrease_balance*(
   if delta != 0: # avoid dirtying the balance cache if not needed
     decrease_balance(state.balances[index], delta)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#deposits
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#modified-process_deposit
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#deposits
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#modified-process_deposit
 func get_validator_from_deposit*(deposit: DepositData):
     Validator =
   let
@@ -69,7 +69,7 @@ func compute_activation_exit_epoch*(epoch: Epoch): Epoch =
   ## ``epoch`` take effect.
   epoch + 1 + MAX_SEED_LOOKAHEAD
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_validator_churn_limit
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_validator_churn_limit
 func get_validator_churn_limit*(
       cfg: RuntimeConfig, state: ForkyBeaconState, cache: var StateCache):
     uint64 =
@@ -79,7 +79,7 @@ func get_validator_churn_limit*(
     count_active_validators(
       state, state.get_current_epoch(), cache) div cfg.CHURN_LIMIT_QUOTIENT)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#initiate_validator_exit
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#initiate_validator_exit
 func initiate_validator_exit*(cfg: RuntimeConfig, state: var ForkyBeaconState,
                               index: ValidatorIndex, cache: var StateCache) =
   ## Initiate the exit of the validator with index ``index``.
@@ -119,8 +119,8 @@ func initiate_validator_exit*(cfg: RuntimeConfig, state: var ForkyBeaconState,
   validator.withdrawable_epoch =
     validator.exit_epoch + cfg.MIN_VALIDATOR_WITHDRAWABILITY_DELAY
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#slash_validator
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#modified-slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#slash_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#modified-slash_validator
 # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/merge/beacon-chain.md#modified-slash_validator
 proc slash_validator*(
     cfg: RuntimeConfig, state: var ForkyBeaconState,
@@ -298,7 +298,7 @@ func get_initial_beacon_block*(state: phase0.BeaconState):
   phase0.TrustedSignedBeaconBlock(
     message: message, root: hash_tree_root(message))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_block_root_at_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_block_root_at_slot
 func get_block_root_at_slot*(state: ForkyBeaconState, slot: Slot): Eth2Digest =
   ## Return the block root at a recent ``slot``.
 
@@ -316,12 +316,12 @@ func get_block_root_at_slot*(state: ForkedHashedBeaconState,
   withState(state):
     get_block_root_at_slot(state.data, slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_block_root
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_block_root
 func get_block_root*(state: ForkyBeaconState, epoch: Epoch): Eth2Digest =
   ## Return the block root at the start of a recent ``epoch``.
   get_block_root_at_slot(state, compute_start_slot_at_epoch(epoch))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_total_balance
 template get_total_balance(
     state: ForkyBeaconState, validator_indices: untyped): Gwei =
   ## Return the combined effective balance of the ``indices``.
@@ -332,13 +332,13 @@ template get_total_balance(
     res += state.validators.asSeq()[validator_index].effective_balance
   max(EFFECTIVE_BALANCE_INCREMENT, res)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_eligible_for_activation_queue
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_eligible_for_activation_queue
 func is_eligible_for_activation_queue*(validator: Validator): bool =
   ## Check if ``validator`` is eligible to be placed into the activation queue.
   validator.activation_eligibility_epoch == FAR_FUTURE_EPOCH and
     validator.effective_balance == MAX_EFFECTIVE_BALANCE
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_eligible_for_activation
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_eligible_for_activation
 func is_eligible_for_activation*(state: ForkyBeaconState, validator: Validator):
     bool =
   ## Check if ``validator`` is eligible for activation.
@@ -348,7 +348,7 @@ func is_eligible_for_activation*(state: ForkyBeaconState, validator: Validator):
   # Has not yet been activated
     validator.activation_epoch == FAR_FUTURE_EPOCH
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
 proc is_valid_indexed_attestation*(
     state: ForkyBeaconState, indexed_attestation: SomeIndexedAttestation,
     flags: UpdateFlags): Result[void, cstring] =
@@ -386,7 +386,7 @@ proc is_valid_indexed_attestation*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_attesting_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_attesting_indices
 func get_attesting_indices*(state: ForkyBeaconState,
                             data: AttestationData,
                             bits: CommitteeValidatorsBits,
@@ -451,8 +451,8 @@ proc is_valid_indexed_attestation*(
 
 # Attestation validation
 # ------------------------------------------------------------------------------------------
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attestations
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attestations
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 
 func check_attestation_slot_target*(data: AttestationData): Result[void, cstring] =
   if not (data.target.epoch == compute_epoch_at_slot(data.slot)):
@@ -491,7 +491,7 @@ func check_attestation_index(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_attestation_participation_flag_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_attestation_participation_flag_indices
 func get_attestation_participation_flag_indices(state: altair.BeaconState | merge.BeaconState,
                                                 data: AttestationData,
                                                 inclusion_delay: uint64): seq[int] =
@@ -525,7 +525,7 @@ func get_attestation_participation_flag_indices(state: altair.BeaconState | merg
 # TODO these duplicate some stuff in state_transition_epoch which uses TotalBalances
 # better to centralize around that if feasible
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_total_active_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_total_active_balance
 func get_total_active_balance*(state: ForkyBeaconState, cache: var StateCache): Gwei =
   ## Return the combined effective balance of the active validators.
   # Note: ``get_total_balance`` returns ``EFFECTIVE_BALANCE_INCREMENT`` Gwei
@@ -536,7 +536,7 @@ func get_total_active_balance*(state: ForkyBeaconState, cache: var StateCache):
   get_total_balance(
     state, cache.get_shuffled_active_validator_indices(state, epoch))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_base_reward_per_increment
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_base_reward_per_increment
 func get_base_reward_per_increment_sqrt*(
     total_active_balance_sqrt: uint64): Gwei =
   EFFECTIVE_BALANCE_INCREMENT * BASE_REWARD_FACTOR div total_active_balance_sqrt
@@ -545,7 +545,7 @@ func get_base_reward_per_increment*(
     total_active_balance: Gwei): Gwei =
   get_base_reward_per_increment_sqrt(integer_squareroot(total_active_balance))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_base_reward
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_base_reward
 func get_base_reward(
     state: altair.BeaconState | merge.BeaconState, index: ValidatorIndex,
     base_reward_per_increment: Gwei): Gwei =
@@ -667,7 +667,7 @@ proc process_attestation*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_next_sync_committee_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_next_sync_committee_indices
 func get_next_sync_committee_keys(state: altair.BeaconState | merge.BeaconState):
     array[SYNC_COMMITTEE_SIZE, ValidatorPubKey] =
   ## Return the sequence of sync committee indices (which may include
@@ -700,7 +700,7 @@ func get_next_sync_committee_keys(state: altair.BeaconState | merge.BeaconState)
     i += 1'u64
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_next_sync_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_next_sync_committee
 proc get_next_sync_committee*(state: altair.BeaconState | merge.BeaconState):
     SyncCommittee =
   ## Return the *next* sync committee for a given ``state``.
@@ -717,7 +717,7 @@ proc get_next_sync_committee*(state: altair.BeaconState | merge.BeaconState):
   res.aggregate_pubkey = finish(attestersAgg).toPubKey()
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/fork.md#upgrading-the-state
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/fork.md#upgrading-the-state
 func translate_participation(
     state: var altair.BeaconState,
     pending_attestations: openArray[phase0.PendingAttestation]) =
diff --git a/beacon_chain/spec/datatypes/altair.nim b/beacon_chain/spec/datatypes/altair.nim
index 3f3b7764e..675b64f1d 100644
--- a/beacon_chain/spec/datatypes/altair.nim
+++ b/beacon_chain/spec/datatypes/altair.nim
@@ -37,7 +37,7 @@ from ../../ssz/merkleization import GeneralizedIndex
 export merkleization.GeneralizedIndex
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#incentivization-weights
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#incentivization-weights
   TIMELY_SOURCE_WEIGHT* = 14
   TIMELY_TARGET_WEIGHT* = 26
   TIMELY_HEAD_WEIGHT* = 14
@@ -61,7 +61,7 @@ const
   TIMELY_TARGET_FLAG_INDEX* = 1
   TIMELY_HEAD_FLAG_INDEX* = 2
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#inactivity-penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#inactivity-penalties
   INACTIVITY_SCORE_BIAS* = 4
   INACTIVITY_SCORE_RECOVERY_RATE* = 16
 
@@ -75,20 +75,20 @@ static: doAssert TIMELY_SOURCE_WEIGHT + TIMELY_TARGET_WEIGHT +
 type
   ### New types
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#custom-types
   ParticipationFlags* = uint8
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#syncaggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#syncaggregate
   SyncAggregate* = object
     sync_committee_bits*: BitArray[SYNC_COMMITTEE_SIZE]
     sync_committee_signature*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#synccommittee
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#synccommittee
   SyncCommittee* = object
     pubkeys*: HashArray[Limit SYNC_COMMITTEE_SIZE, ValidatorPubKey]
     aggregate_pubkey*: ValidatorPubKey
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#synccommitteemessage
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#synccommitteemessage
   SyncCommitteeMessage* = object
     slot*: Slot ##\
     ## Slot to which this contribution pertains
@@ -102,7 +102,7 @@ type
     signature*: ValidatorSig ##\
     ## Signature by the validator over the block root of `slot`
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#synccommitteecontribution
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#synccommitteecontribution
   SyncCommitteeAggregationBits* =
     BitArray[SYNC_SUBCOMMITTEE_SIZE]
 
@@ -124,25 +124,25 @@ type
     signature*: ValidatorSig  ##\
     ## Signature by the validator(s) over the block root of `slot`
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#contributionandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#contributionandproof
   ContributionAndProof* = object
     aggregator_index*: uint64
     contribution*: SyncCommitteeContribution
     selection_proof*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#signedcontributionandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#signedcontributionandproof
   SignedContributionAndProof* = object
     message*: ContributionAndProof
     signature*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#syncaggregatorselectiondata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#syncaggregatorselectiondata
   SyncAggregatorSelectionData* = object
     slot*: Slot
     subcommittee_index*: uint64
 
   ### Modified/overloaded
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#lightclientsnapshot
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#lightclientsnapshot
   LightClientSnapshot* = object
     header*: BeaconBlockHeader ##\
     ## Beacon block header
@@ -152,7 +152,7 @@ type
 
     next_sync_committee*: SyncCommittee
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#lightclientupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#lightclientupdate
   LightClientUpdate* = object
     header*: BeaconBlockHeader  ##\
     ## Update beacon block header
@@ -174,13 +174,13 @@ type
     fork_version*: Version ##\
     ## Fork version for the aggregate signature
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#lightclientstore
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#lightclientstore
   LightClientStore* = object
     snapshot*: LightClientSnapshot
     valid_updates*: HashSet[LightClientUpdate]
       ## TODO: This will benefit from being an ordered set
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#beaconstate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#beaconstate
   BeaconState* = object
     # Versioning
     genesis_time*: uint64
@@ -326,7 +326,7 @@ type
     state_root*: Eth2Digest ##\
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data ##\
@@ -373,7 +373,7 @@ type
 
   SyncnetBits* = BitArray[SYNC_COMMITTEE_SUBNET_COUNT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/p2p-interface.md#metadata
   MetaData* = object
     seq_number*: uint64
     attnets*: AttnetBits
@@ -395,7 +395,7 @@ type
     # [New in Altair]
     sync_aggregate*: SyncAggregate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/base.nim b/beacon_chain/spec/datatypes/base.nim
index 7d57cf178..a42539ddc 100644
--- a/beacon_chain/spec/datatypes/base.nim
+++ b/beacon_chain/spec/datatypes/base.nim
@@ -78,7 +78,7 @@ const
   DEPOSIT_CONTRACT_TREE_DEPTH* = 32
   BASE_REWARDS_PER_EPOCH* = 4
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#misc
   ATTESTATION_SUBNET_COUNT* = 64
 
 template maxSize*(n: int) {.pragma.}
@@ -117,7 +117,7 @@ type
   # Domains
   # ---------------------------------------------------------------
   DomainType* = enum
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#domain-types
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#domain-types
     DOMAIN_BEACON_PROPOSER = 0
     DOMAIN_BEACON_ATTESTER = 1
     DOMAIN_RANDAO = 2
@@ -126,12 +126,12 @@ type
     DOMAIN_SELECTION_PROOF = 5
     DOMAIN_AGGREGATE_AND_PROOF = 6
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#domain-types
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#domain-types
     DOMAIN_SYNC_COMMITTEE = 7
     DOMAIN_SYNC_COMMITTEE_SELECTION_PROOF = 8
     DOMAIN_CONTRIBUTION_AND_PROOF = 9
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#custom-types
   Eth2Domain* = array[32, byte]
 
   # https://github.com/nim-lang/Nim/issues/574 and be consistent across
@@ -171,7 +171,7 @@ type
     signed_header_1*: TrustedSignedBeaconBlockHeader
     signed_header_2*: TrustedSignedBeaconBlockHeader
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attesterslashing
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attesterslashing
   AttesterSlashing* = object
     attestation_1*: IndexedAttestation
     attestation_2*: IndexedAttestation
@@ -220,7 +220,7 @@ type
     current_version*: Version
     genesis_validators_root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#checkpoint
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#checkpoint
   Checkpoint* = object
     epoch*: Epoch
     root*: Eth2Digest
@@ -238,20 +238,20 @@ type
     source*: Checkpoint
     target*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#deposit
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#deposit
   Deposit* = object
     proof*: array[DEPOSIT_CONTRACT_TREE_DEPTH + 1, Eth2Digest] ##\
     ## Merkle path to deposit root
 
     data*: DepositData
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#depositmessage
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#depositmessage
   DepositMessage* = object
     pubkey*: ValidatorPubKey
     withdrawal_credentials*: Eth2Digest
     amount*: Gwei
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#depositdata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#depositdata
   DepositData* = object
     pubkey*: ValidatorPubKey
     withdrawal_credentials*: Eth2Digest
@@ -260,7 +260,7 @@ type
     # if the deposit should be added or not during processing
     signature*: ValidatorSig  # Signing over DepositMessage
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#voluntaryexit
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#voluntaryexit
   VoluntaryExit* = object
     epoch*: Epoch ##\
     ## Earliest epoch when voluntary exit can be processed
@@ -285,7 +285,7 @@ type
     pubkey*: UncompressedPubKey
     withdrawal_credentials*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#validator
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#validator
   Validator* = object
     pubkey*: ValidatorPubKey
 
@@ -307,7 +307,7 @@ type
     withdrawable_epoch*: Epoch ##\
     ## When validator can withdraw or transfer funds
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#pendingattestation
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#pendingattestation
   PendingAttestation* = object
     aggregation_bits*: CommitteeValidatorsBits
     data*: AttestationData
@@ -316,12 +316,12 @@ type
 
     proposer_index*: uint64
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#historicalbatch
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#historicalbatch
   HistoricalBatch* = object
     block_roots* : array[SLOTS_PER_HISTORICAL_ROOT, Eth2Digest]
     state_roots* : array[SLOTS_PER_HISTORICAL_ROOT, Eth2Digest]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#fork
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#fork
   Fork* = object
     previous_version*: Version
     current_version*: Version
@@ -329,13 +329,13 @@ type
     epoch*: Epoch ##\
     ## Epoch of latest fork
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#eth1data
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#eth1data
   Eth1Data* = object
     deposit_root*: Eth2Digest
     deposit_count*: uint64
     block_hash*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#signedvoluntaryexit
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#signedvoluntaryexit
   SignedVoluntaryExit* = object
     message*: VoluntaryExit
     signature*: ValidatorSig
@@ -344,7 +344,7 @@ type
     message*: VoluntaryExit
     signature*: TrustedSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beaconblockheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beaconblockheader
   BeaconBlockHeader* = object
     slot*: Slot
     proposer_index*: uint64
@@ -352,7 +352,7 @@ type
     state_root*: Eth2Digest
     body_root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#signingdata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#signingdata
   SigningData* = object
     object_root*: Eth2Digest
     domain*: Eth2Domain
@@ -368,13 +368,13 @@ type
     message*: BeaconBlockHeader
     signature*: TrustedSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#aggregateandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#aggregateandproof
   AggregateAndProof* = object
     aggregator_index*: uint64
     aggregate*: Attestation
     selection_proof*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#signedaggregateandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#signedaggregateandproof
   SignedAggregateAndProof* = object
     message*: AggregateAndProof
     signature*: ValidatorSig
@@ -418,7 +418,7 @@ type
     withdrawable_epoch*: Epoch ##\
     ## When validator can withdraw or transfer funds
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#eth2-field
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#eth2-field
   ENRForkID* = object
     fork_digest*: ForkDigest
     next_fork_version*: Version
@@ -528,7 +528,7 @@ type
 
     flags*: set[RewardFlags]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_total_balance
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_total_balance
   TotalBalances* = object
     # The total effective balance of all active validators during the _current_
     # epoch.
diff --git a/beacon_chain/spec/datatypes/merge.nim b/beacon_chain/spec/datatypes/merge.nim
index 60afd3695..6ffa63b41 100644
--- a/beacon_chain/spec/datatypes/merge.nim
+++ b/beacon_chain/spec/datatypes/merge.nim
@@ -290,7 +290,7 @@ type
     # Execution
     execution_payload*: ExecutionPayload  # [New in Merge]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/phase0.nim b/beacon_chain/spec/datatypes/phase0.nim
index ba35880bf..f95a1570c 100644
--- a/beacon_chain/spec/datatypes/phase0.nim
+++ b/beacon_chain/spec/datatypes/phase0.nim
@@ -96,7 +96,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beaconblock
   BeaconBlock* = object
     ## For each slot, a proposer is chosen from the validator pool to propose
     ## a new block. Once the block as been proposed, it is transmitted to
@@ -115,7 +115,7 @@ type
 
     body*: BeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#metadata
   MetaData* = object
     seq_number*: uint64
     attnets*: AttnetBits
@@ -157,7 +157,7 @@ type
     state_root*: Eth2Digest ##\
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -206,7 +206,7 @@ type
     deposits*: List[Deposit, Limit MAX_DEPOSITS]
     voluntary_exits*: List[TrustedSignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/digest.nim b/beacon_chain/spec/digest.nim
index dcd33cd37..fa8695329 100644
--- a/beacon_chain/spec/digest.nim
+++ b/beacon_chain/spec/digest.nim
@@ -7,7 +7,7 @@
 
 # Serenity hash function / digest
 #
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#hash
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#hash
 #
 # In Phase 0 the beacon chain is deployed with SHA256 (SHA2-256).
 # Note that is is different from Keccak256 (often mistakenly called SHA3-256)
diff --git a/beacon_chain/spec/eth2_apis/rest_types.nim b/beacon_chain/spec/eth2_apis/rest_types.nim
index 5957b026f..2a5f7c0aa 100644
--- a/beacon_chain/spec/eth2_apis/rest_types.nim
+++ b/beacon_chain/spec/eth2_apis/rest_types.nim
@@ -303,7 +303,7 @@ type
     DEPOSIT_NETWORK_ID*: uint64
     DEPOSIT_CONTRACT_ADDRESS*: Eth1Address
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#constants
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#constants
     # GENESIS_SLOT
     # GENESIS_EPOCH
     # FAR_FUTURE_EPOCH
@@ -321,7 +321,7 @@ type
     DOMAIN_SELECTION_PROOF*: DomainType
     DOMAIN_AGGREGATE_AND_PROOF*: DomainType
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#constants
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#constants
     TIMELY_SOURCE_FLAG_INDEX*: byte
     TIMELY_TARGET_FLAG_INDEX*: byte
     TIMELY_HEAD_FLAG_INDEX*: byte
@@ -336,13 +336,13 @@ type
     DOMAIN_CONTRIBUTION_AND_PROOF*: DomainType
     # PARTICIPATION_FLAG_WEIGHTS
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#constants
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#constants
     TARGET_AGGREGATORS_PER_COMMITTEE*: uint64
     RANDOM_SUBNETS_PER_VALIDATOR*: uint64
     EPOCHS_PER_RANDOM_SUBNET_SUBSCRIPTION*: uint64
     ATTESTATION_SUBNET_COUNT*: uint64
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#constants
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#constants
     TARGET_AGGREGATORS_PER_SYNC_SUBCOMMITTEE*: uint64
     SYNC_COMMITTEE_SUBNET_COUNT*: uint64
 
diff --git a/beacon_chain/spec/forks.nim b/beacon_chain/spec/forks.nim
index f7313dbd1..1ae2b4fc6 100644
--- a/beacon_chain/spec/forks.nim
+++ b/beacon_chain/spec/forks.nim
@@ -485,7 +485,7 @@ func compute_fork_data_root*(current_version: Version,
     genesis_validators_root: genesis_validators_root
   ))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_fork_digest
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_fork_digest
 func compute_fork_digest*(current_version: Version,
                           genesis_validators_root: Eth2Digest): ForkDigest =
   ## Return the 4-byte fork digest for the ``current_version`` and
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index cc2ecbd4a..a21deddad 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -24,7 +24,7 @@ import
 export
   forks, eth2_merkleization, ssz_codec
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#integer_squareroot
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#integer_squareroot
 func integer_squareroot*(n: SomeInteger): SomeInteger =
   ## Return the largest integer ``x`` such that ``x**2 <= n``.
   doAssert n >= 0'u64
@@ -37,7 +37,7 @@ func integer_squareroot*(n: SomeInteger): SomeInteger =
     y = (x + n div x) div 2
   x
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_epoch_at_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_epoch_at_slot
 func compute_epoch_at_slot*(slot: Slot|uint64): Epoch =
   ## Return the epoch number at ``slot``.
   (slot div SLOTS_PER_EPOCH).Epoch
@@ -279,7 +279,7 @@ func verify_merkle_multiproof*(
   if calc.isErr: return false
   calc.get == root
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_valid_merkle_branch
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_valid_merkle_branch
 func is_valid_merkle_branch*(leaf: Eth2Digest, branch: openArray[Eth2Digest],
                              depth: int, index: uint64,
                              root: Eth2Digest): bool =
@@ -352,7 +352,7 @@ func build_proof*(anchor: object, leaf_index: uint64,
   doAssert proof.len == log2trunc(leaf_index)
   build_proof_impl(anchor, leaf_index, proof)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#sync-committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#sync-committee
 template sync_committee_period*(epoch: Epoch): SyncCommitteePeriod =
   (epoch div EPOCHS_PER_SYNC_COMMITTEE_PERIOD).SyncCommitteePeriod
 
@@ -395,7 +395,7 @@ func get_active_validator_indices_len*(
   withState(state):
     get_active_validator_indices_len(state.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_current_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_current_epoch
 func get_current_epoch*(state: ForkyBeaconState): Epoch =
   ## Return the current epoch.
   doAssert state.slot >= GENESIS_SLOT, $state.slot
@@ -406,7 +406,7 @@ func get_current_epoch*(state: ForkedHashedBeaconState): Epoch =
   ## Return the current epoch.
   withState(state): state.data.slot.epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_randao_mix
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_randao_mix
 func get_randao_mix*(state: ForkyBeaconState, epoch: Epoch): Eth2Digest =
   ## Returns the randao mix at a recent ``epoch``.
   state.randao_mixes[epoch mod EPOCHS_PER_HISTORICAL_VECTOR]
@@ -431,7 +431,7 @@ func uint_to_bytes4*(x: uint64): array[4, byte] =
   result[2] = ((x shr 16) and 0xff).byte
   result[3] = ((x shr 24) and 0xff).byte
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_domain
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_domain
 func compute_domain*(
     domain_type: DomainType,
     fork_version: Version,
@@ -442,7 +442,7 @@ func compute_domain*(
   result[0..3] = uint_to_bytes4(domain_type.uint64)
   result[4..31] = fork_data_root.data.toOpenArray(0, 27)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_domain
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_domain
 func get_domain*(
     fork: Fork,
     domain_type: DomainType,
@@ -463,7 +463,7 @@ func get_domain*(
   ## of a message.
   get_domain(state.fork, domain_type, epoch, state.genesis_validators_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_signing_root
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_signing_root
 func compute_signing_root*(ssz_object: auto, domain: Eth2Domain): Eth2Digest =
   ## Return the signing root of an object by calculating the root of the
   ## object-domain tree.
@@ -473,7 +473,7 @@ func compute_signing_root*(ssz_object: auto, domain: Eth2Domain): Eth2Digest =
   )
   hash_tree_root(domain_wrapped_object)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_seed
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_seed
 func get_seed*(state: ForkyBeaconState, epoch: Epoch, domain_type: DomainType):
     Eth2Digest =
   ## Return the seed at ``epoch``.
@@ -491,17 +491,17 @@ func get_seed*(state: ForkyBeaconState, epoch: Epoch, domain_type: DomainType):
       epoch + EPOCHS_PER_HISTORICAL_VECTOR - MIN_SEED_LOOKAHEAD - 1).data
   eth2digest(seed_input)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#add_flag
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#add_flag
 func add_flag*(flags: ParticipationFlags, flag_index: int): ParticipationFlags =
   let flag = ParticipationFlags(1'u8 shl flag_index)
   flags or flag
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#has_flag
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#has_flag
 func has_flag*(flags: ParticipationFlags, flag_index: int): bool =
   let flag = ParticipationFlags(1'u8 shl flag_index)
   (flags and flag) == flag
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#get_subtree_index
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#get_subtree_index
 func get_subtree_index*(idx: GeneralizedIndex): uint64 =
   doAssert idx > 0
   uint64(idx mod (type(idx)(1) shl log2trunc(idx)))
diff --git a/beacon_chain/spec/light_client_sync.nim b/beacon_chain/spec/light_client_sync.nim
index d3f81d668..9ef5fd0b3 100644
--- a/beacon_chain/spec/light_client_sync.nim
+++ b/beacon_chain/spec/light_client_sync.nim
@@ -66,7 +66,7 @@ proc validate_light_client_update*(snapshot: LightClientSnapshot,
 
   blsFastAggregateVerify(participant_pubkeys, signing_root.data, update.sync_committee_signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#apply_light_client_update
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#apply_light_client_update
 proc apply_light_client_update(snapshot: var LightClientSnapshot, update: LightClientUpdate) =
   let
     snapshot_period = sync_committee_period(snapshot.header.slot)
@@ -76,7 +76,7 @@ proc apply_light_client_update(snapshot: var LightClientSnapshot, update: LightC
     snapshot.next_sync_committee = update.next_sync_committee
   snapshot.header = update.header
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/sync-protocol.md#process_light_client_update
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/sync-protocol.md#process_light_client_update
 proc process_light_client_update*(store: var LightClientStore,
                                   update: LightClientUpdate,
                                   current_slot: Slot,
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index df8adcefb..fceb0b40a 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -14,14 +14,14 @@ import
 export base
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#topics-and-messages
   topicBeaconBlocksSuffix* = "beacon_block/ssz_snappy"
   topicVoluntaryExitsSuffix* = "voluntary_exit/ssz_snappy"
   topicProposerSlashingsSuffix* = "proposer_slashing/ssz_snappy"
   topicAttesterSlashingsSuffix* = "attester_slashing/ssz_snappy"
   topicAggregateAndProofsSuffix* = "beacon_aggregate_and_proof/ssz_snappy"
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#configuration
   MAX_CHUNK_SIZE* = 1 * 1024 * 1024 # bytes
   GOSSIP_MAX_SIZE* = 1 * 1024 * 1024 # bytes
   TTFB_TIMEOUT* = 5.seconds
@@ -77,7 +77,7 @@ func compute_subnet_for_attestation*(
     (committees_since_epoch_start + committee_index.uint64) mod
     ATTESTATION_SUBNET_COUNT)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#broadcast-attestation
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#broadcast-attestation
 func getAttestationTopic*(forkDigest: ForkDigest,
                           subnetId: SubnetId): string =
   ## For subscribing and unsubscribing to/from a subnet.
@@ -89,7 +89,7 @@ func getSyncCommitteeTopic*(forkDigest: ForkDigest,
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "sync_committee_" & $(subcommitteeIdx.asUInt8) & "/ssz_snappy"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/p2p-interface.md#topics-and-messages
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/p2p-interface.md#topics-and-messages
 func getSyncCommitteeContributionAndProofTopic*(forkDigest: ForkDigest): string =
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "sync_committee_contribution_and_proof/ssz_snappy"
diff --git a/beacon_chain/spec/presets.nim b/beacon_chain/spec/presets.nim
index 202fb384f..1d142fb41 100644
--- a/beacon_chain/spec/presets.nim
+++ b/beacon_chain/spec/presets.nim
@@ -15,7 +15,7 @@ export
   toBytesBE
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#withdrawal-prefixes
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#withdrawal-prefixes
   BLS_WITHDRAWAL_PREFIX*: byte = 0
   ETH1_ADDRESS_WITHDRAWAL_PREFIX*: byte = 1
 
diff --git a/beacon_chain/spec/signatures.nim b/beacon_chain/spec/signatures.nim
index b0e4ca4b8..193c3bab5 100644
--- a/beacon_chain/spec/signatures.nim
+++ b/beacon_chain/spec/signatures.nim
@@ -57,7 +57,7 @@ func compute_epoch_root*(
   let domain = get_domain(fork, DOMAIN_RANDAO, epoch, genesis_validators_root)
   compute_signing_root(epoch, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#randao-reveal
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#randao-reveal
 func get_epoch_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, epoch: Epoch,
     privkey: ValidatorPrivKey): CookedSig =
@@ -82,7 +82,7 @@ func compute_block_root*(
       fork, DOMAIN_BEACON_PROPOSER, epoch, genesis_validators_root)
   compute_signing_root(root, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#signature
 func get_block_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, slot: Slot,
     root: Eth2Digest, privkey: ValidatorPrivKey): CookedSig =
@@ -140,7 +140,7 @@ func compute_attestation_root*(
       fork, DOMAIN_BEACON_ATTESTER, epoch, genesis_validators_root)
   compute_signing_root(attestation_data, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#prepare-sync-committee-message
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#prepare-sync-committee-message
 func sync_committee_msg_signing_root*(
     fork: Fork, epoch: Epoch,
     genesis_validators_root: Eth2Digest,
@@ -172,7 +172,7 @@ proc sync_committee_selection_proof_signing_root*(
       subcommittee_index: subcommittee_index)
   compute_signing_root(signing_data, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#aggregate-signature
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#aggregate-signature
 func get_attestation_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest,
     attestation_data: AttestationData,
@@ -194,7 +194,7 @@ proc verify_attestation_signature*(
 
     blsFastAggregateVerify(pubkeys, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#deposits
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#deposits
 func get_deposit_signature*(preset: RuntimeConfig,
                             deposit: DepositData,
                             privkey: ValidatorPrivKey): CookedSig =
@@ -256,7 +256,7 @@ proc verify_sync_committee_message_signature*(
 
   blsVerify(pubkey, signing_root.data, signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#aggregation-selection
 proc is_sync_committee_aggregator*(signature: ValidatorSig): bool =
   let
     signatureDigest = eth2digest(signature.blob)
diff --git a/beacon_chain/spec/state_transition.nim b/beacon_chain/spec/state_transition.nim
index ad07c82e6..d1f514a5a 100644
--- a/beacon_chain/spec/state_transition.nim
+++ b/beacon_chain/spec/state_transition.nim
@@ -6,7 +6,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 #
 # The entry point is `state_transition` which is at the bottom of the file!
 #
@@ -56,7 +56,7 @@ export extras, phase0, altair
 
 type Foo = phase0.SignedBeaconBlock | altair.SignedBeaconBlock | phase0.TrustedSignedBeaconBlock | altair.TrustedSignedBeaconBlock | phase0.SigVerifiedSignedBeaconBlock | altair.SigVerifiedSignedBeaconBlock | merge.TrustedSignedBeaconBlock | merge.SigVerifiedSignedBeaconBlock | merge.SignedBeaconBlock
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc verify_block_signature(
     #state: ForkyBeaconState, signed_block: SomeSomeSignedBeaconBlock): bool {.nbench.} =
     state: ForkyBeaconState, signed_block: Foo): bool {.nbench.} =
@@ -78,7 +78,7 @@ proc verify_block_signature(
 
   true
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc verifyStateRoot(state: ForkyBeaconState, blck: phase0.BeaconBlock or phase0.SigVerifiedBeaconBlock or altair.BeaconBlock or altair.SigVerifiedBeaconBlock or merge.BeaconBlock or merge.SigVerifiedBeaconBlock or merge.TrustedBeaconBlock): bool =
   # This is inlined in state_transition(...) in spec.
   let state_root = hash_tree_root(state)
@@ -133,7 +133,7 @@ type
 # Hashed-state transition functions
 # ---------------------------------------------------------------
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 func process_slot*(
     state: var ForkyBeaconState, pre_state_root: Eth2Digest) {.nbench.} =
   # `process_slot` is the first stage of per-slot processing - it is run for
@@ -358,7 +358,7 @@ proc state_transition*(
   state_transition_block(
     cfg, state, signedBlock, cache, flags, rollback)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#preparing-for-a-beaconblock
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#preparing-for-a-beaconblock
 template partialBeaconBlock(
     cfg: RuntimeConfig,
     state: var phase0.HashedBeaconState,
@@ -428,7 +428,7 @@ proc makeBeaconBlock*(
   blck.state_root = state.root
   ok(blck)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#preparing-a-beaconblock
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#preparing-a-beaconblock
 template partialBeaconBlock(
     cfg: RuntimeConfig,
     state: var altair.HashedBeaconState,
diff --git a/beacon_chain/spec/state_transition_block.nim b/beacon_chain/spec/state_transition_block.nim
index 93e44e54a..dd7c2a494 100644
--- a/beacon_chain/spec/state_transition_block.nim
+++ b/beacon_chain/spec/state_transition_block.nim
@@ -6,7 +6,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition - block processing, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#block-processing
 #
 # The entry point is `process_block` which is at the bottom of this file.
 #
@@ -29,7 +29,7 @@ import
 
 export extras, phase0, altair
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#block-header
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#block-header
 func process_block_header*(
     state: var ForkyBeaconState, blck: SomeSomeBeaconBlock, flags: UpdateFlags,
     cache: var StateCache): Result[void, cstring] {.nbench.} =
@@ -105,7 +105,7 @@ proc process_randao(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#eth1-data
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#eth1-data
 func process_eth1_data(state: var ForkyBeaconState, body: SomeSomeBeaconBlockBody): Result[void, cstring] {.nbench.}=
   if not state.eth1_data_votes.add body.eth1_data:
     # Count is reset  in process_final_updates, so this should never happen
@@ -116,14 +116,14 @@ func process_eth1_data(state: var ForkyBeaconState, body: SomeSomeBeaconBlockBod
     state.eth1_data = body.eth1_data
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_slashable_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_slashable_validator
 func is_slashable_validator(validator: Validator, epoch: Epoch): bool =
   # Check if ``validator`` is slashable.
   (not validator.slashed) and
     (validator.activation_epoch <= epoch) and
     (epoch < validator.withdrawable_epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#proposer-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#proposer-slashings
 proc check_proposer_slashing*(
     state: var ForkyBeaconState, proposer_slashing: SomeProposerSlashing,
     flags: UpdateFlags):
@@ -185,7 +185,7 @@ proc process_proposer_slashing*(
     cache)
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#is_slashable_attestation_data
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#is_slashable_attestation_data
 func is_slashable_attestation_data(
     data_1: AttestationData, data_2: AttestationData): bool =
   ## Check if ``data_1`` and ``data_2`` are slashable according to Casper FFG
@@ -197,7 +197,7 @@ func is_slashable_attestation_data(
     (data_1.source.epoch < data_2.source.epoch and
      data_2.target.epoch < data_1.target.epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attester-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attester-slashings
 proc check_attester_slashing*(
        state: var ForkyBeaconState,
        attester_slashing: SomeAttesterSlashing,
@@ -237,7 +237,7 @@ proc check_attester_slashing*(
   withState(state):
     check_attester_slashing(state.data, attester_slashing, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attester-slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attester-slashings
 proc process_attester_slashing*(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState,
@@ -383,7 +383,7 @@ proc check_voluntary_exit*(
   withState(state):
     check_voluntary_exit(cfg, state.data, signed_voluntary_exit, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#voluntary-exits
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#voluntary-exits
 proc process_voluntary_exit*(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState,
@@ -396,7 +396,7 @@ proc process_voluntary_exit*(
     cache)
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#operations
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#operations
 proc process_operations(cfg: RuntimeConfig,
                         state: var ForkyBeaconState,
                         body: SomeSomeBeaconBlockBody,
@@ -538,7 +538,7 @@ proc process_execution_payload*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#block-processing
 # TODO workaround for https://github.com/nim-lang/Nim/issues/18095
 # copy of datatypes/phase0.nim
 type SomePhase0Block =
diff --git a/beacon_chain/spec/state_transition_epoch.nim b/beacon_chain/spec/state_transition_epoch.nim
index 35eb20331..0757d7a2d 100644
--- a/beacon_chain/spec/state_transition_epoch.nim
+++ b/beacon_chain/spec/state_transition_epoch.nim
@@ -6,8 +6,8 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # State transition - epoch processing, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#epoch-processing and
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#epoch-processing and
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#epoch-processing
 #
 # The entry point is `process_epoch`, which is at the bottom of this file.
 #
@@ -36,7 +36,7 @@ export extras, phase0, altair
 logScope: topics = "consens"
 
 # Accessors that implement the max condition in `get_total_balance`:
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_total_balance
 template current_epoch*(v: TotalBalances): Gwei =
   max(EFFECTIVE_BALANCE_INCREMENT, v.current_epoch_raw)
 template previous_epoch*(v: TotalBalances): Gwei =
@@ -168,8 +168,8 @@ func is_eligible_validator*(validator: ParticipationInfo): bool =
 # Spec
 # --------------------------------------------------------
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_unslashed_participating_indices
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_unslashed_participating_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_total_balance
 func get_unslashed_participating_balances*(state: altair.BeaconState | merge.BeaconState):
     UnslashedParticipatingBalances =
   let
@@ -256,7 +256,7 @@ proc process_justification_and_finalization*(state: var phase0.BeaconState,
   ## state.justification_bits[1:] = state.justification_bits[:-1]
   ## state.justification_bits[0] = 0b0
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#misc
   const JUSTIFICATION_BITS_LENGTH = 4
 
   state.justification_bits = (state.justification_bits shl 1) and
@@ -331,8 +331,8 @@ proc process_justification_and_finalization*(state: var phase0.BeaconState,
       current_epoch = current_epoch,
       checkpoint = shortLog(state.finalized_checkpoint)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#justification-and-finalization
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#justification-and-finalization
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#justification-and-finalization
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#justification-and-finalization
 # TODO merge these things -- effectively, the phase0 process_justification_and_finalization is mostly a stub in this world
 proc weigh_justification_and_finalization(state: var (altair.BeaconState | merge.BeaconState),
                                           total_active_balance: Gwei,
@@ -352,7 +352,7 @@ proc weigh_justification_and_finalization(state: var (altair.BeaconState | merge
   ## state.justification_bits[1:] = state.justification_bits[:-1]
   ## state.justification_bits[0] = 0b0
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#misc
   const JUSTIFICATION_BITS_LENGTH = 4
 
   state.justification_bits = (state.justification_bits shl 1) and
@@ -445,7 +445,7 @@ proc process_justification_and_finalization*(state: var (altair.BeaconState | me
     balances.previous_epoch[TIMELY_TARGET_FLAG_INDEX],
     balances.current_epoch_TIMELY_TARGET, flags)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#helpers
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#helpers
 func get_base_reward_sqrt*(state: phase0.BeaconState, index: ValidatorIndex,
     total_balance_sqrt: auto): Gwei =
   # Spec function recalculates total_balance every time, which creates an
@@ -464,7 +464,7 @@ func is_in_inactivity_leak(finality_delay: uint64): bool =
 func get_finality_delay(state: ForkyBeaconState): uint64 =
   get_previous_epoch(state) - state.finalized_checkpoint.epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#rewards-and-penalties-1
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#rewards-and-penalties-1
 func is_in_inactivity_leak(state: altair.BeaconState | merge.BeaconState): bool =
   # TODO remove this, see above
   get_finality_delay(state) > MIN_EPOCHS_TO_INACTIVITY_PENALTY
@@ -567,7 +567,7 @@ func get_inactivity_penalty_delta*(validator: RewardStatus,
 
   delta
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_attestation_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_attestation_deltas
 func get_attestation_deltas(state: phase0.BeaconState, info: var phase0.EpochInfo) =
   ## Update rewards with attestation reward/penalty deltas for each validator.
 
@@ -611,7 +611,7 @@ func get_attestation_deltas(state: phase0.BeaconState, info: var phase0.EpochInf
         info.statuses[proposer_index].delta.add(
           proposer_delta.get()[1])
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_base_reward
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_base_reward
 func get_base_reward_increment(
     state: altair.BeaconState | merge.BeaconState, index: ValidatorIndex,
     base_reward_per_increment: Gwei): Gwei =
@@ -621,7 +621,7 @@ func get_base_reward_increment(
     state.validators[index].effective_balance div EFFECTIVE_BALANCE_INCREMENT
   increments * base_reward_per_increment
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#get_flag_index_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#get_flag_index_deltas
 iterator get_flag_index_deltas*(
     state: altair.BeaconState | merge.BeaconState, flag_index: int,
     base_reward_per_increment: Gwei,
@@ -663,7 +663,7 @@ iterator get_flag_index_deltas*(
       else:
         (vidx, RewardDelta(rewards: 0.Gwei, penalties: 0.Gwei))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#modified-get_inactivity_penalty_deltas
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#modified-get_inactivity_penalty_deltas
 iterator get_inactivity_penalty_deltas*(
     cfg: RuntimeConfig, state: altair.BeaconState, info: altair.EpochInfo):
     (ValidatorIndex, Gwei) =
@@ -709,7 +709,7 @@ iterator get_inactivity_penalty_deltas*(
           state.inactivity_scores[index]
       yield (vidx, Gwei(penalty_numerator div penalty_denominator))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#rewards-and-penalties-1
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#rewards-and-penalties-1
 func process_rewards_and_penalties(
     state: var phase0.BeaconState, info: var phase0.EpochInfo) {.nbench.} =
   # No rewards are applied at the end of `GENESIS_EPOCH` because rewards are
@@ -732,7 +732,7 @@ func process_rewards_and_penalties(
     decrease_balance(balance, v.delta.penalties)
     state.balances.asSeq()[idx] = balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#rewards-and-penalties
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#rewards-and-penalties
 func process_rewards_and_penalties(
     cfg: RuntimeConfig, state: var (altair.BeaconState | merge.BeaconState),
     info: var altair.EpochInfo)
@@ -766,7 +766,7 @@ func process_rewards_and_penalties(
     decrease_balance(balance, info.validators[index].delta.penalties)
     state.balances.asSeq()[index] = balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#registry-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#registry-updates
 func process_registry_updates*(
     cfg: RuntimeConfig, state: var ForkyBeaconState, cache: var StateCache) {.nbench.} =
   ## Process activation eligibility and ejections
@@ -816,8 +816,8 @@ func process_registry_updates*(
     state.validators[index].activation_epoch =
       compute_activation_exit_epoch(get_current_epoch(state))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#slashings
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#slashings
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#slashings
 # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/merge/beacon-chain.md#slashings
 func process_slashings*(state: var ForkyBeaconState, total_balance: Gwei) {.nbench.} =
   let
@@ -856,7 +856,7 @@ func process_eth1_data_reset*(state: var ForkyBeaconState) {.nbench.} =
   if next_epoch mod EPOCHS_PER_ETH1_VOTING_PERIOD == 0:
     state.eth1_data_votes = default(type state.eth1_data_votes)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#effective-balances-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#effective-balances-updates
 func process_effective_balance_updates*(state: var ForkyBeaconState) {.nbench.} =
   # Update effective balances with hysteresis
   for index in 0..<state.validators.len:
@@ -875,14 +875,14 @@ func process_effective_balance_updates*(state: var ForkyBeaconState) {.nbench.}
           balance - balance mod EFFECTIVE_BALANCE_INCREMENT,
           MAX_EFFECTIVE_BALANCE)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#slashings-balances-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#slashings-balances-updates
 func process_slashings_reset*(state: var ForkyBeaconState) {.nbench.} =
   let next_epoch = get_current_epoch(state) + 1
 
   # Reset slashings
   state.slashings[int(next_epoch mod EPOCHS_PER_SLASHINGS_VECTOR)] = 0.Gwei
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#randao-mixes-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#randao-mixes-updates
 func process_randao_mixes_reset*(state: var ForkyBeaconState) {.nbench.} =
   let
     current_epoch = get_current_epoch(state)
@@ -892,7 +892,7 @@ func process_randao_mixes_reset*(state: var ForkyBeaconState) {.nbench.} =
   state.randao_mixes[next_epoch mod EPOCHS_PER_HISTORICAL_VECTOR] =
     get_randao_mix(state, current_epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#historical-roots-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#historical-roots-updates
 func process_historical_roots_update*(state: var ForkyBeaconState) {.nbench.} =
   ## Set historical root accumulator
   let next_epoch = get_current_epoch(state) + 1
@@ -900,13 +900,13 @@ func process_historical_roots_update*(state: var ForkyBeaconState) {.nbench.} =
   if next_epoch mod (SLOTS_PER_HISTORICAL_ROOT div SLOTS_PER_EPOCH) == 0:
     # Equivalent to hash_tree_root(foo: HistoricalBatch), but without using
     # significant additional stack or heap.
-    # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#historicalbatch
+    # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#historicalbatch
     # In response to https://github.com/status-im/nimbus-eth2/issues/921
     if not state.historical_roots.add hash_tree_root(
         [hash_tree_root(state.block_roots), hash_tree_root(state.state_roots)]):
       raiseAssert "no more room for historical roots, so long and thanks for the fish!"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#participation-records-rotation
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#participation-records-rotation
 func process_participation_record_updates*(state: var phase0.BeaconState) {.nbench.} =
   # Rotate current/previous epoch attestations - using swap avoids copying all
   # elements using a slow genericSeqAssign
@@ -927,14 +927,14 @@ func process_participation_flag_updates*(state: var (altair.BeaconState | merge.
 
   state.current_epoch_participation.resetCache()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#sync-committee-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#sync-committee-updates
 proc process_sync_committee_updates*(state: var (altair.BeaconState | merge.BeaconState)) =
   let next_epoch = get_current_epoch(state) + 1
   if next_epoch mod EPOCHS_PER_SYNC_COMMITTEE_PERIOD == 0:
     state.current_sync_committee = state.next_sync_committee
     state.next_sync_committee = get_next_sync_committee(state)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#inactivity-scores
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#inactivity-scores
 func process_inactivity_updates*(
     cfg: RuntimeConfig, state: var (altair.BeaconState | merge.BeaconState),
     info: altair.EpochInfo) =
@@ -966,7 +966,7 @@ func process_inactivity_updates*(
       inactivity_score -= min(INACTIVITY_SCORE_RECOVERY_RATE.uint64, inactivity_score)
     state.inactivity_scores.asSeq()[index] = inactivity_score
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#epoch-processing
 proc process_epoch*(
     cfg: RuntimeConfig, state: var phase0.BeaconState, flags: UpdateFlags,
     cache: var StateCache, info: var phase0.EpochInfo) {.nbench.} =
@@ -989,31 +989,31 @@ proc process_epoch*(
     # the finalization rules triggered.
     doAssert state.finalized_checkpoint.epoch + 3 >= currentEpoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#rewards-and-penalties-1
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#rewards-and-penalties-1
   process_rewards_and_penalties(state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#registry-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#registry-updates
   process_registry_updates(cfg, state, cache)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#slashings
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#slashings
   process_slashings(state, info.total_balances.current_epoch)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#eth1-data-votes-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#eth1-data-votes-updates
   process_eth1_data_reset(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#effective-balances-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#effective-balances-updates
   process_effective_balance_updates(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#slashings-balances-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#slashings-balances-updates
   process_slashings_reset(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#randao-mixes-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#randao-mixes-updates
   process_randao_mixes_reset(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#historical-roots-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#historical-roots-updates
   process_historical_roots_update(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#participation-records-rotation
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#participation-records-rotation
   process_participation_record_updates(state)
 
 func init*(
@@ -1037,7 +1037,7 @@ func init*(
     T: type altair.EpochInfo, state: altair.BeaconState | merge.BeaconState): T =
   init(result, state)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/beacon-chain.md#epoch-processing
 proc process_epoch*(
     cfg: RuntimeConfig, state: var (altair.BeaconState | merge.BeaconState),
     flags: UpdateFlags, cache: var StateCache, info: var altair.EpochInfo)
@@ -1048,7 +1048,7 @@ proc process_epoch*(
 
   info.init(state)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#justification-and-finalization
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#justification-and-finalization
   process_justification_and_finalization(state, info.balances, flags)
 
   # state.slot hasn't been incremented yet.
@@ -1066,7 +1066,7 @@ proc process_epoch*(
   # https://github.com/ethereum/consensus-specs/blob/v1.1.0/specs/phase0/beacon-chain.md#rewards-and-penalties-1
   process_rewards_and_penalties(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#registry-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#registry-updates
   process_registry_updates(cfg, state, cache)
 
   # https://github.com/ethereum/consensus-specs/blob/v1.0.1/specs/phase0/beacon-chain.md#slashings
diff --git a/beacon_chain/spec/validator.nim b/beacon_chain/spec/validator.nim
index 8a778cb8e..934ef1ba4 100644
--- a/beacon_chain/spec/validator.nim
+++ b/beacon_chain/spec/validator.nim
@@ -22,8 +22,8 @@ const
   PIVOT_VIEW_SIZE = SEED_SIZE + ROUND_SIZE
   TOTAL_SIZE = PIVOT_VIEW_SIZE + POSITION_WINDOW_SIZE
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_shuffled_index
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_committee
 # Port of https://github.com/protolambda/zrnt/blob/master/eth2/beacon/shuffle.go
 # Shuffles or unshuffles, depending on the `dir` (true for shuffling, false for unshuffling
 func shuffle_list*(input: var seq[ValidatorIndex], seed: Eth2Digest) =
@@ -153,13 +153,13 @@ func get_shuffled_active_validator_indices*(
   withState(state):
     cache.get_shuffled_active_validator_indices(state.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_active_validator_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_active_validator_indices
 func count_active_validators*(state: ForkyBeaconState,
                               epoch: Epoch,
                               cache: var StateCache): uint64 =
   cache.get_shuffled_active_validator_indices(state, epoch).lenu64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_committee_count_per_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_committee_count_per_slot
 func get_committee_count_per_slot*(num_active_validators: uint64): uint64 =
   clamp(
     num_active_validators div SLOTS_PER_EPOCH div TARGET_COMMITTEE_SIZE,
@@ -194,7 +194,7 @@ func get_committee_count_per_slot*(state: ForkyBeaconState,
                                    cache: var StateCache): uint64 =
   get_committee_count_per_slot(state, slot.compute_epoch_at_slot, cache)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_previous_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_previous_epoch
 func get_previous_epoch*(current_epoch: Epoch): Epoch =
   ## Return the previous epoch (unless the current epoch is ``GENESIS_EPOCH``).
   if current_epoch == GENESIS_EPOCH:
@@ -212,7 +212,7 @@ func get_previous_epoch*(state: ForkedHashedBeaconState): Epoch =
   ## Return the previous epoch (unless the current epoch is ``GENESIS_EPOCH``).
   get_previous_epoch(get_current_epoch(state))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_committee
 func compute_committee_slice*(
     active_validators, index, count: uint64): Slice[int] =
   doAssert active_validators <= ValidatorIndex.high.uint64
@@ -256,7 +256,7 @@ func compute_committee_len*(
 
   (slice.b - slice.a + 1).uint64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_committee
 iterator get_beacon_committee*(
     state: ForkyBeaconState, slot: Slot, index: CommitteeIndex,
     cache: var StateCache): ValidatorIndex =
@@ -319,7 +319,7 @@ func get_beacon_committee_len*(
   withState(state):
     get_beacon_committee_len(state.data, slot, index, cache)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#compute_shuffled_index
 func compute_shuffled_index*(
     index: uint64, index_count: uint64, seed: Eth2Digest): uint64 =
   ## Return the shuffled index corresponding to ``seed`` (and ``index_count``).
@@ -381,7 +381,7 @@ func compute_proposer_index(state: ForkyBeaconState,
       return some(candidate_index)
     i += 1
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_proposer_index
 func get_beacon_proposer_index*(
     state: ForkyBeaconState, cache: var StateCache, slot: Slot):
     Option[ValidatorIndex] =
@@ -414,7 +414,7 @@ func get_beacon_proposer_index*(
 
     return res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#get_beacon_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#get_beacon_proposer_index
 func get_beacon_proposer_index*(state: ForkyBeaconState, cache: var StateCache):
     Option[ValidatorIndex] =
   get_beacon_proposer_index(state, cache, state.slot)
@@ -425,7 +425,7 @@ func get_beacon_proposer_index*(state: ForkedHashedBeaconState,
   withState(state):
     get_beacon_proposer_index(state.data, cache, slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#aggregation-selection
 func is_aggregator*(committee_len: uint64, slot_signature: ValidatorSig): bool =
   let
     modulo = max(1'u64, committee_len div TARGET_AGGREGATORS_PER_COMMITTEE)
diff --git a/beacon_chain/validators/validator_duties.nim b/beacon_chain/validators/validator_duties.nim
index feabe2c98..931e986dd 100644
--- a/beacon_chain/validators/validator_duties.nim
+++ b/beacon_chain/validators/validator_duties.nim
@@ -813,7 +813,7 @@ proc makeAggregateAndProof*(
 
   # TODO for testing purposes, refactor this into the condition check
   # and just calculation
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#aggregation-selection
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#aggregation-selection
   if not is_aggregator(epochRef, slot, index, slot_signature):
     return none(AggregateAndProof)
 
@@ -821,8 +821,8 @@ proc makeAggregateAndProof*(
   if maybe_slot_attestation.isNone:
     return none(AggregateAndProof)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#construct-aggregate
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#aggregateandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#construct-aggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#aggregateandproof
   some(AggregateAndProof(
     aggregator_index: validatorIndex.uint64,
     aggregate: maybe_slot_attestation.get,
diff --git a/beacon_chain/validators/validator_pool.nim b/beacon_chain/validators/validator_pool.nim
index 21ec7ef28..323b8954a 100644
--- a/beacon_chain/validators/validator_pool.nim
+++ b/beacon_chain/validators/validator_pool.nim
@@ -139,7 +139,7 @@ proc signWithRemoteValidator(v: AttachedValidator,
   discard v.connection.outStream.readLine(line)
   return ValidatorSig.fromHex(line).get()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#signature
 proc signBlockProposal*(v: AttachedValidator, fork: Fork,
                         genesis_validators_root: Eth2Digest, slot: Slot,
                         blockRoot: Eth2Digest): Future[ValidatorSig] {.async.} =
@@ -220,7 +220,7 @@ proc signSyncCommitteeMessage*(v: AttachedValidator,
     validator_index: v.index.get.uint64,
     signature: signature)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#aggregation-selection
 proc getSyncCommitteeSelectionProof*(
     v: AttachedValidator,
     fork: Fork,
@@ -238,7 +238,7 @@ proc getSyncCommitteeSelectionProof*(
     of ValidatorKind.Remote:
       await signWithRemoteValidator(v, signing_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/altair/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/altair/validator.md#signature
 proc sign*(
     v: AttachedValidator,
     msg: ref SignedContributionAndProof,
@@ -255,7 +255,7 @@ proc sign*(
     of ValidatorKind.Remote:
       await signWithRemoteValidator(v, signing_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#randao-reveal
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#randao-reveal
 func genRandaoReveal*(k: ValidatorPrivKey, fork: Fork,
                       genesis_validators_root: Eth2Digest,
                       slot: Slot): CookedSig =
diff --git a/docs/attestation_flow.md b/docs/attestation_flow.md
index 7fc41dcb4..8c4ce7c21 100644
--- a/docs/attestation_flow.md
+++ b/docs/attestation_flow.md
@@ -6,10 +6,10 @@ This is a WIP document to explain the attestation flows.
 
 It is important to distinguish attestation `validation` from attestation `verification`.
 - Attestation `validation` is defined in the P2P specs. Validated attestations can be forwarded on GossipSub.
-  - Aggregated: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+  - Aggregated: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 - Attestation `verification` is defined in the consensus specs. Verified attestations can affect fork choice and may be included in a block.
-  - https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attestations
+  - https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attestations
 
 From the specs it seems like gossip attestation `validation` is a superset of consensus attestation `verification`.
 
@@ -52,7 +52,7 @@ These GossipSub topics are used to listen for attestations:
 
 The attestations are then validated by `validateAttestation()` or `validateAggregate()` in either `attestationValidator()` or `aggregateValidator()` according to the P2P specs.
 - https://github.com/ethereum/consensus-specs/blob/v1.1.0/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#attestation-subnets
+- https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#attestation-subnets
 
 Finally, valid attestations are added to the local `attestationPool`.
 Attestations are dropped in case of an error.
diff --git a/docs/block_flow.md b/docs/block_flow.md
index 713a71c1b..2da446080 100644
--- a/docs/block_flow.md
+++ b/docs/block_flow.md
@@ -6,10 +6,10 @@ This is a WIP document to explain the beacon block flows.
 
 Important distinction:
 - We distinguish block `validation` which is defined in the P2P specs:
-  https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_block.
+  https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_block.
   A validated block can be forwarded on gossipsub.
 - and we distinguish `verification` which is defined in consensus specs:
-  https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#block-processing
+  https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#block-processing
   A block needs to be verified to enter fork choice, the DAG and the BeaconChainDB
 
 In particular in terms of costly checks validating a block only requires checking:
@@ -103,7 +103,7 @@ It is important to note that 3 data structures are sharing the same `AsyncQueue[
 Blocks are listened to via the gossipsub topic `/eth2/{$forkDigest}/beacon_block/ssz_snappy` (`topicBeaconBlocks` variable)
 
 They are then:
-- validated by `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_block
+- validated by `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_block
 - Important: P2P validation is not full verification (state transition and internal cryptographic signatures were not checked)
 - enqueued in the shared block queue `AsyncQueue[BlockEntry]` in case of success
 - dropped in case of error
@@ -115,7 +115,7 @@ Logs:
 
 ### Gossip flow out
 
-- After validation in `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/p2p-interface.md#beacon_block
+- After validation in `blockValidator()` in the Eth2Processor by `validateBeaconBlock()` according to spec https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/p2p-interface.md#beacon_block
 - Important: P2P validation is not full verification (state transition and internal cryptographic signatures were not checked)
 - We jump into libp2p/protocols/pubsub/pubsub.nim in the method `validate(PubSub, message)`
 - which was called by `rpcHandler(GossipSub, PubSubPeer, RPCMsg)`
diff --git a/tests/consensus_spec/fixtures_utils.nim b/tests/consensus_spec/fixtures_utils.nim
index 62435bfd0..c42054846 100644
--- a/tests/consensus_spec/fixtures_utils.nim
+++ b/tests/consensus_spec/fixtures_utils.nim
@@ -40,7 +40,7 @@ type
     rewards*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
     penalties*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#eth1block
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#eth1block
   Eth1Block* = object
     timestamp*: uint64
     deposit_root*: Eth2Digest
diff --git a/tests/spec_block_processing/test_process_attestation.nim b/tests/spec_block_processing/test_process_attestation.nim
index 0320cd60f..718460903 100644
--- a/tests/spec_block_processing/test_process_attestation.nim
+++ b/tests/spec_block_processing/test_process_attestation.nim
@@ -6,7 +6,7 @@
 # at your option. This file may not be copied, modified, or distributed except according to those terms.
 
 # process_attestation (beaconstate.nim)
-# https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/beacon-chain.md#attestations
+# https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/beacon-chain.md#attestations
 # ---------------------------------------------------------------
 
 {.used.}
diff --git a/tests/testblockutil.nim b/tests/testblockutil.nim
index 7b7df9293..652851331 100644
--- a/tests/testblockutil.nim
+++ b/tests/testblockutil.nim
@@ -170,7 +170,7 @@ func makeAttestationData*(
     "Computed epoch was " & $slot.compute_epoch_at_slot &
     "  while the state current_epoch was " & $current_epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.4/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.1.5/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.uint64,