diff --git a/beacon_chain/consensus_object_pools/README.md b/beacon_chain/consensus_object_pools/README.md
index b3350a489..14b0677b6 100644
--- a/beacon_chain/consensus_object_pools/README.md
+++ b/beacon_chain/consensus_object_pools/README.md
@@ -5,9 +5,9 @@ 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/v1.4.0/specs/phase0/p2p-interface.md#beacon_block
-- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
 - unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
-- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/p2p-interface.md#voluntary_exit
+- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#voluntary_exit
 - Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#attester_slashing
 - Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#proposer_slashing
 
diff --git a/beacon_chain/consensus_object_pools/blockchain_dag.nim b/beacon_chain/consensus_object_pools/blockchain_dag.nim
index 61cf2389f..a8cc9531a 100644
--- a/beacon_chain/consensus_object_pools/blockchain_dag.nim
+++ b/beacon_chain/consensus_object_pools/blockchain_dag.nim
@@ -2676,7 +2676,7 @@ func aggregateAll*(
     # Aggregation spec requires non-empty collection
     # - https://tools.ietf.org/html/draft-irtf-cfrg-bls-signature-04
     # Consensus specs require at least one attesting index in attestation
-    # - https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
+    # - https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#is_valid_indexed_attestation
     return err("aggregate: no attesting keys")
 
   let
diff --git a/beacon_chain/gossip_processing/README.md b/beacon_chain/gossip_processing/README.md
index ea59c6d0f..5547265de 100644
--- a/beacon_chain/gossip_processing/README.md
+++ b/beacon_chain/gossip_processing/README.md
@@ -14,7 +14,7 @@ Gossip validation is different from consensus verification in particular for blo
 - Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/p2p-interface.md#attestation-subnets
 - Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#voluntary_exit
 - Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#proposer_slashing
-- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#attester_slashing
+- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/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/libnimbus_lc/libnimbus_lc.h b/beacon_chain/libnimbus_lc/libnimbus_lc.h
index 1ba736de8..dbcfb57cb 100644
--- a/beacon_chain/libnimbus_lc/libnimbus_lc.h
+++ b/beacon_chain/libnimbus_lc/libnimbus_lc.h
@@ -271,7 +271,7 @@ void ETHBeaconClockDestroy(ETHBeaconClock *beaconClock);
  * @return Slot number for the current wall clock time - If genesis has occurred.
  * @return `0` - If genesis is still pending.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#custom-types
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#custom-types
  */
 ETH_RESULT_USE_CHECK
 int ETHBeaconClockGetSlot(const ETHBeaconClock *beaconClock);
diff --git a/beacon_chain/libnimbus_lc/libnimbus_lc.nim b/beacon_chain/libnimbus_lc/libnimbus_lc.nim
index 9b6780d4e..16d08864a 100644
--- a/beacon_chain/libnimbus_lc/libnimbus_lc.nim
+++ b/beacon_chain/libnimbus_lc/libnimbus_lc.nim
@@ -735,7 +735,7 @@ func ETHLightClientStoreGetFinalizedHeader(
   ## * Latest finalized header.
   ##
   ## See:
-  ## * https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/capella/light-client/sync-protocol.md#modified-lightclientheader
+  ## * https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/sync-protocol.md#modified-lightclientheader
   addr store[].finalized_header
 
 func ETHLightClientStoreIsNextSyncCommitteeKnown(
diff --git a/beacon_chain/networking/eth2_network.nim b/beacon_chain/networking/eth2_network.nim
index 22aef2ecd..2e64a2127 100644
--- a/beacon_chain/networking/eth2_network.nim
+++ b/beacon_chain/networking/eth2_network.nim
@@ -2234,7 +2234,7 @@ proc getPersistentNetKeys*(
 func gossipId(
     data: openArray[byte], phase0Prefix, topic: string): seq[byte] =
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/p2p-interface.md#topics-and-messages
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/p2p-interface.md#topics-and-messages
   const MESSAGE_DOMAIN_VALID_SNAPPY = [0x01'u8, 0x00, 0x00, 0x00]
   let messageDigest = withEth2Hash:
     h.update(MESSAGE_DOMAIN_VALID_SNAPPY)
diff --git a/beacon_chain/nimbus_beacon_node.nim b/beacon_chain/nimbus_beacon_node.nim
index 42d28aed5..bf23606a3 100644
--- a/beacon_chain/nimbus_beacon_node.nim
+++ b/beacon_chain/nimbus_beacon_node.nim
@@ -1863,7 +1863,7 @@ proc installMessageValidators(node: BeaconNode) =
               MsgSource.gossip, attesterSlashing)))
 
       # proposer_slashing
-      # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#proposer_slashing
+      # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/p2p-interface.md#proposer_slashing
       node.network.addValidator(
         getProposerSlashingsTopic(digest), proc (
           proposerSlashing: ProposerSlashing
diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 21505dddf..6a06adbeb 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -80,7 +80,7 @@ func get_validator_from_deposit*(
     effective_balance: 0.Gwei  # [Modified in Electra:EIP7251]
   )
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.7/specs/phase0/beacon-chain.md#compute_activation_exit_epoch
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#compute_activation_exit_epoch
 func compute_activation_exit_epoch*(epoch: Epoch): Epoch =
   ## Return the epoch during which validator activations and exits initiated in
   ## ``epoch`` take effect.
@@ -270,7 +270,7 @@ func compute_consolidation_epoch_and_update_churn*(
 
   state.earliest_consolidation_epoch
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/electra/beacon-chain.md#modified-initiate_validator_exit
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#modified-initiate_validator_exit
 func initiate_validator_exit*(
     cfg: RuntimeConfig, state: var electra.BeaconState,
     index: ValidatorIndex, exit_queue_info: ExitQueueInfo,
@@ -843,7 +843,7 @@ func get_attestation_participation_flag_indices(
 # 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/v1.4.0/specs/phase0/beacon-chain.md#get_total_active_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/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
@@ -859,7 +859,7 @@ func get_total_active_balance*(state: ForkyBeaconState, cache: var StateCache):
     cache.total_active_balance[epoch] = tab
     return tab
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#get_base_reward_per_increment
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/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.Gwei * BASE_REWARD_FACTOR div
@@ -1287,7 +1287,7 @@ template effective_balance_might_update*(
   balance + DOWNWARD_THRESHOLD < effective_balance or
     effective_balance + UPWARD_THRESHOLD < balance
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#effective-balances-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#effective-balances-updates
 # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.1/specs/electra/beacon-chain.md#updated-process_effective_balance_updates
 template get_effective_balance_update*(
     consensusFork: static ConsensusFork, balance: Gwei,
diff --git a/beacon_chain/spec/crypto.nim b/beacon_chain/spec/crypto.nim
index d51176076..4efac1688 100644
--- a/beacon_chain/spec/crypto.nim
+++ b/beacon_chain/spec/crypto.nim
@@ -220,7 +220,7 @@ func blsVerify*(
   ## to enforce correct usage.
   PublicKey(pubkey).verify(message, blscurve.Signature(signature))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#bls-signatures
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#bls-signatures
 proc blsVerify*(
     pubkey: ValidatorPubKey, message: openArray[byte],
     signature: CookedSig): bool =
diff --git a/beacon_chain/spec/datatypes/altair.nim b/beacon_chain/spec/datatypes/altair.nim
index b6afcb877..10b300810 100644
--- a/beacon_chain/spec/datatypes/altair.nim
+++ b/beacon_chain/spec/datatypes/altair.nim
@@ -40,7 +40,7 @@ static:
   doAssert ord(TIMELY_HEAD_FLAG_INDEX) == 2
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#incentivization-weights
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/beacon-chain.md#incentivization-weights
   TIMELY_SOURCE_WEIGHT* = 14
   TIMELY_TARGET_WEIGHT* = 26
   TIMELY_HEAD_WEIGHT* = 14
@@ -164,7 +164,7 @@ type
   NextSyncCommitteeBranch* =
     array[log2trunc(NEXT_SYNC_COMMITTEE_GINDEX), Eth2Digest]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/altair/light-client/sync-protocol.md#lightclientheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/sync-protocol.md#lightclientheader
   LightClientHeader* = object
     beacon*: BeaconBlockHeader
       ## Beacon block header
@@ -211,7 +211,7 @@ type
     # Slot at which the aggregate signature was created (untrusted)
     signature_slot*: Slot
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/sync-protocol.md#lightclientoptimisticupdate
   LightClientOptimisticUpdate* = object
     # Header attested to by the sync committee
     attested_header*: LightClientHeader
diff --git a/beacon_chain/spec/datatypes/base.nim b/beacon_chain/spec/datatypes/base.nim
index 58e3445a1..262393062 100644
--- a/beacon_chain/spec/datatypes/base.nim
+++ b/beacon_chain/spec/datatypes/base.nim
@@ -226,7 +226,7 @@ type
 
   ForkDigest* = distinct array[4, byte]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#forkdata
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#forkdata
   ForkData* = object
     current_version*: Version
     genesis_validators_root*: Eth2Digest
@@ -442,7 +442,7 @@ type
     withdrawable_epoch*: Epoch
       ## When validator can withdraw funds
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#validator
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#validator
   ValidatorStatusCapella* = object
     # This is a validator without the expensive, immutable, append-only parts
     # serialized. They're represented in memory to allow in-place SSZ reading
diff --git a/beacon_chain/spec/datatypes/capella.nim b/beacon_chain/spec/datatypes/capella.nim
index 9cf3f8fad..144a10e50 100644
--- a/beacon_chain/spec/datatypes/capella.nim
+++ b/beacon_chain/spec/datatypes/capella.nim
@@ -40,7 +40,7 @@ type
   SignedBLSToExecutionChangeList* =
     List[SignedBLSToExecutionChange, Limit MAX_BLS_TO_EXECUTION_CHANGES]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/capella/beacon-chain.md#withdrawal
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/beacon-chain.md#withdrawal
   Withdrawal* = object
     index*: WithdrawalIndex
     validator_index*: uint64
@@ -53,12 +53,12 @@ type
     from_bls_pubkey*: ValidatorPubKey
     to_execution_address*: ExecutionAddress
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/beacon-chain.md#signedblstoexecutionchange
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/beacon-chain.md#signedblstoexecutionchange
   SignedBLSToExecutionChange* = object
     message*: BLSToExecutionChange
     signature*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/beacon-chain.md#historicalsummary
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/beacon-chain.md#historicalsummary
   HistoricalSummary* = object
     # `HistoricalSummary` matches the components of the phase0
     # `HistoricalBatch` making the two hash_tree_root-compatible.
@@ -685,13 +685,13 @@ func is_valid_light_client_header*(
     get_subtree_index(EXECUTION_PAYLOAD_GINDEX),
     header.beacon.body_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_header_to_capella*(
     pre: altair.LightClientHeader): LightClientHeader =
   LightClientHeader(
     beacon: pre.beacon)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_bootstrap_to_capella*(
     pre: altair.LightClientBootstrap): LightClientBootstrap =
   LightClientBootstrap(
@@ -711,7 +711,7 @@ func upgrade_lc_update_to_capella*(
     sync_aggregate: pre.sync_aggregate,
     signature_slot: pre.signature_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_finality_update_to_capella*(
     pre: altair.LightClientFinalityUpdate): LightClientFinalityUpdate =
   LightClientFinalityUpdate(
@@ -721,7 +721,7 @@ func upgrade_lc_finality_update_to_capella*(
     sync_aggregate: pre.sync_aggregate,
     signature_slot: pre.signature_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_optimistic_update_to_capella*(
     pre: altair.LightClientOptimisticUpdate): LightClientOptimisticUpdate =
   LightClientOptimisticUpdate(
diff --git a/beacon_chain/spec/datatypes/deneb.nim b/beacon_chain/spec/datatypes/deneb.nim
index 2bcd4f022..b8c0cfd9c 100644
--- a/beacon_chain/spec/datatypes/deneb.nim
+++ b/beacon_chain/spec/datatypes/deneb.nim
@@ -31,7 +31,7 @@ from kzg4844 import KzgCommitment, KzgProof
 export json_serialization, base, kzg4844
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/polynomial-commitments.md#constants
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/deneb/polynomial-commitments.md#constants
   BYTES_PER_FIELD_ELEMENT = 32
   BLS_MODULUS* = "52435875175126190479447740508185965837690552500527637822603658699938581184513".u256
 
@@ -53,7 +53,7 @@ type
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/polynomial-commitments.md#custom-types
   Blob* = array[BYTES_PER_FIELD_ELEMENT * FIELD_ELEMENTS_PER_BLOB, byte]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/deneb/p2p-interface.md#blobsidecar
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/deneb/p2p-interface.md#blobsidecar
   BlobSidecar* = object
     index*: BlobIndex
       ## Index of blob in block
@@ -81,7 +81,7 @@ type
     block_root*: Eth2Digest
     index*: BlobIndex
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/deneb/beacon-chain.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/deneb/beacon-chain.md#executionpayload
   ExecutionPayload* = object
     # Execution block header fields
     parent_hash*: Eth2Digest
diff --git a/beacon_chain/spec/datatypes/eip7594.nim b/beacon_chain/spec/datatypes/eip7594.nim
index 2ec8d4672..0bcef4ef3 100644
--- a/beacon_chain/spec/datatypes/eip7594.nim
+++ b/beacon_chain/spec/datatypes/eip7594.nim
@@ -9,7 +9,7 @@
 
 import
   std/[sequtils],
-  "."/[altair, base, deneb], 
+  "."/[altair, base, deneb],
   kzg4844/[kzg, kzg_abi]
 
 from std/strutils import join
@@ -30,7 +30,7 @@ const
   KZG_COMMITMENTS_INCLUSION_PROOF_DEPTH* = 4
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/_features/eip7594/polynomial-commitments-sampling.md#custom-types 
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/_features/eip7594/polynomial-commitments-sampling.md#custom-types
   BLSFieldElement* = KzgBytes32
   G2Point* = array[96, byte]
   PolynomialCoeff* = List[BLSFieldElement, FIELD_ELEMENTS_PER_EXT_BLOB]
@@ -76,13 +76,13 @@ type
     block_root*: Eth2Digest
     index*: ColumnIndex
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/_features/eip7594/das-core.md#matrixentry
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/_features/eip7594/das-core.md#matrixentry
   MatrixEntry* = object
     cell*: Cell
     kzg_proof*: KzgProof
     column_index*: ColumnIndex
     row_index*: RowIndex
-  
+
   # Not in spec, defined in order to compute custody subnets
   CscBits* = BitArray[DATA_COLUMN_SIDECAR_SUBNET_COUNT]
 
@@ -93,7 +93,7 @@ type
     seq_number*: uint64
     attnets*: AttnetBits
     syncnets*: SyncnetBits
-    custody_subnet_count*: CscCount 
+    custody_subnet_count*: CscCount
 
 func shortLog*(v: DataColumnSidecar): auto =
   (
diff --git a/beacon_chain/spec/datatypes/electra.nim b/beacon_chain/spec/datatypes/electra.nim
index 000b198cd..49d5b70ca 100644
--- a/beacon_chain/spec/datatypes/electra.nim
+++ b/beacon_chain/spec/datatypes/electra.nim
@@ -53,7 +53,7 @@ const
   NEXT_SYNC_COMMITTEE_GINDEX_ELECTRA* = 87.GeneralizedIndex
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.5/specs/electra/beacon-chain.md#depositrequest
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#depositrequest
   DepositRequest* = object
     pubkey*: ValidatorPubKey
     withdrawal_credentials*: Eth2Digest
@@ -152,7 +152,7 @@ type
     index*: uint64
     amount*: Gwei
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.2/specs/electra/beacon-chain.md#pendingpartialwithdrawal
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#pendingpartialwithdrawal
   PendingPartialWithdrawal* = object
     index*: uint64
     amount*: Gwei
@@ -164,7 +164,7 @@ type
     validator_pubkey*: ValidatorPubKey
     amount*: Gwei
 
-  # https://github.com/ethereum/consensus-specs/blob/82133085a1295e93394ebdf71df8f2f6e0962588/specs/electra/beacon-chain.md#pendingconsolidation
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#pendingconsolidation
   PendingConsolidation* = object
     source_index*: uint64
     target_index*: uint64
@@ -595,7 +595,7 @@ type
 
   AttestationCommitteeBits* = BitArray[MAX_COMMITTEES_PER_SLOT.int]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/electra/beacon-chain.md#attestation
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#attestation
   Attestation* = object
     aggregation_bits*: ElectraCommitteeValidatorsBits
     data*: AttestationData
diff --git a/beacon_chain/spec/datatypes/phase0.nim b/beacon_chain/spec/datatypes/phase0.nim
index 061cd690c..9be075355 100644
--- a/beacon_chain/spec/datatypes/phase0.nim
+++ b/beacon_chain/spec/datatypes/phase0.nim
@@ -75,7 +75,7 @@ type
     current_justified_checkpoint*: Checkpoint
     finalized_checkpoint*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#get_total_balance
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#get_total_balance
   TotalBalances* = object
     # The total effective balance of all active validators during the _current_
     # epoch.
@@ -221,7 +221,7 @@ type
     deposits*: List[Deposit, Limit MAX_DEPOSITS]
     voluntary_exits*: List[TrustedSignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index f2c25973f..2a7f002a6 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -192,7 +192,7 @@ func compute_signing_root*(ssz_object: auto, domain: Eth2Domain): Eth2Digest =
   )
   hash_tree_root(domain_wrapped_object)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.7/specs/phase0/beacon-chain.md#get_seed
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#get_seed
 func get_seed*(
     state: ForkyBeaconState, epoch: Epoch, domain_type: DomainType,
     mix: Eth2Digest): Eth2Digest =
@@ -221,7 +221,7 @@ func has_flag*(flags: ParticipationFlags, flag_index: TimelyFlag): bool =
   let flag = ParticipationFlags(1'u8 shl ord(flag_index))
   (flags and flag) == flag
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/deneb/p2p-interface.md#check_blob_sidecar_inclusion_proof
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/deneb/p2p-interface.md#verify_blob_sidecar_inclusion_proof
 func verify_blob_sidecar_inclusion_proof*(
     blob_sidecar: BlobSidecar): Result[void, string] =
   let gindex = kzg_commitment_inclusion_proof_gindex(blob_sidecar.index)
diff --git a/beacon_chain/spec/light_client_sync.nim b/beacon_chain/spec/light_client_sync.nim
index e3f87f68d..ec042a05f 100644
--- a/beacon_chain/spec/light_client_sync.nim
+++ b/beacon_chain/spec/light_client_sync.nim
@@ -211,7 +211,7 @@ func apply_light_client_update(
     didProgress = true
   didProgress
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/light-client/sync-protocol.md#process_light_client_store_force_update
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/light-client/sync-protocol.md#process_light_client_store_force_update
 type
   ForceUpdateResult* = enum
     NoUpdate,
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index 9db4db163..7120d4f33 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -89,7 +89,7 @@ func getAttestationTopic*(forkDigest: ForkDigest,
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "beacon_attestation_" & $(subnetId) & "/ssz_snappy"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/p2p-interface.md#topics-and-messages
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/p2p-interface.md#topics-and-messages
 func getSyncCommitteeTopic*(forkDigest: ForkDigest,
                             subcommitteeIdx: SyncSubcommitteeIndex): string =
   ## For subscribing and unsubscribing to/from a subnet.
diff --git a/beacon_chain/spec/state_transition_block.nim b/beacon_chain/spec/state_transition_block.nim
index bf9753d37..e54481767 100644
--- a/beacon_chain/spec/state_transition_block.nim
+++ b/beacon_chain/spec/state_transition_block.nim
@@ -13,7 +13,7 @@
 # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#block-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/capella/beacon-chain.md#block-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/deneb/beacon-chain.md#block-processing
-# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.1/specs/electra/beacon-chain.md#block-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/electra/beacon-chain.md#block-processing
 #
 # The entry point is `process_block` which is at the bottom of this file.
 #
@@ -128,7 +128,7 @@ func process_eth1_data(
     state.eth1_data = body.eth1_data
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#is_slashable_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/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
@@ -644,7 +644,7 @@ type
     proposer_slashings*: Gwei
     attester_slashings*: Gwei
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#operations
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#operations
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/capella/beacon-chain.md#modified-process_operations
 # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/electra/beacon-chain.md#operations
 proc process_operations(
diff --git a/beacon_chain/spec/state_transition_epoch.nim b/beacon_chain/spec/state_transition_epoch.nim
index d608c1290..1415640cd 100644
--- a/beacon_chain/spec/state_transition_epoch.nim
+++ b/beacon_chain/spec/state_transition_epoch.nim
@@ -8,7 +8,7 @@
 {.push raises: [].}
 
 # State transition - epoch processing, as described in
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/bellatrix/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/capella/beacon-chain.md#epoch-processing
@@ -40,7 +40,7 @@ export extras, phase0, altair
 logScope: topics = "consens"
 
 # Accessors that implement the max condition in `get_total_balance`:
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#get_total_balance
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#get_total_balance
 template current_epoch*(v: TotalBalances): Gwei =
   max(EFFECTIVE_BALANCE_INCREMENT.Gwei, v.current_epoch_raw)
 template previous_epoch*(v: TotalBalances): Gwei =
@@ -1084,7 +1084,7 @@ func process_slashings*(state: var ForkyBeaconState, total_balance: Gwei) =
         total_balance)
       decrease_balance(state, vidx, penalty)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#eth1-data-votes-updates
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#eth1-data-votes-updates
 func process_eth1_data_reset*(state: var ForkyBeaconState) =
   let next_epoch = get_current_epoch(state) + 1
 
@@ -1203,7 +1203,7 @@ template compute_inactivity_update(
       min(cfg.INACTIVITY_SCORE_RECOVERY_RATE, inactivity_score)
   inactivity_score
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#inactivity-scores
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/beacon-chain.md#inactivity-scores
 func process_inactivity_updates*(
     cfg: RuntimeConfig,
     state: var (altair.BeaconState | bellatrix.BeaconState |
@@ -1430,7 +1430,7 @@ proc process_epoch*(
   # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/beacon-chain.md#rewards-and-penalties
   process_rewards_and_penalties(cfg, state, info)  # [Modified in Altair]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/beacon-chain.md#registry-updates
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#registry-updates
   ? process_registry_updates(cfg, state, cache)
 
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#slashings
@@ -1446,7 +1446,7 @@ proc process_epoch*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/capella/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/capella/beacon-chain.md#epoch-processing
 proc process_epoch*(
     cfg: RuntimeConfig,
     state: var (capella.BeaconState | deneb.BeaconState),
@@ -1473,7 +1473,7 @@ proc process_epoch*(
 
   process_inactivity_updates(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/altair/beacon-chain.md#rewards-and-penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/altair/beacon-chain.md#rewards-and-penalties
   process_rewards_and_penalties(cfg, state, info)
 
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#registry-updates
diff --git a/beacon_chain/validators/beacon_validators.nim b/beacon_chain/validators/beacon_validators.nim
index fd4a249ad..d232a3512 100644
--- a/beacon_chain/validators/beacon_validators.nim
+++ b/beacon_chain/validators/beacon_validators.nim
@@ -1596,7 +1596,7 @@ proc signAndSendAggregate(
       shufflingRef, slot, committee_index, selectionProof):
     return
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/validator.md#construct-aggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/validator.md#construct-aggregate
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0/specs/phase0/validator.md#aggregateandproof
   var
     msg = phase0.SignedAggregateAndProof(
diff --git a/docs/the_nimbus_book/src/web3signer.md b/docs/the_nimbus_book/src/web3signer.md
index 2ec45d2e5..ec94f9e28 100644
--- a/docs/the_nimbus_book/src/web3signer.md
+++ b/docs/the_nimbus_book/src/web3signer.md
@@ -155,6 +155,6 @@ Since the generalized index of a particular field may change in a hard-fork, in
 ```
 
 Nimbus automatically computes the generalized index depending on the currently active fork.
-The remote signer is expected to verify the incoming Merkle proof through the standardized [is_valid_merkle_branch](https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.6/specs/phase0/beacon-chain.md#is_valid_merkle_branch) function by utilizing a similar automatic mapping mechanism for the generalized index.
+The remote signer is expected to verify the incoming Merkle proof through the standardized [is_valid_merkle_branch](https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.6/specs/phase0/beacon-chain.md#is_valid_merkle_branch) function by utilizing a similar automatic mapping mechanism for the generalized index.
 
 You can instruct Nimbus to use the verifying Web3Signer protocol by either supplying the `--verifying-web3-signer` command-line option or by creating a remote keystore file in the format described above. You can use the command-line option `--proven-block-property` once or multiple times to enumerate the properties of the block for which Merkle proofs will be supplied.