diff --git a/beacon_chain/beacon_clock.nim b/beacon_chain/beacon_clock.nim
index 7c96312c6..e47fa0ac6 100644
--- a/beacon_chain/beacon_clock.nim
+++ b/beacon_chain/beacon_clock.nim
@@ -26,7 +26,7 @@ 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/v1.4.0-beta.3/specs/phase0/fork-choice.md#fork-choice
+    ## https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.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 51dfd33ba..21143ae7a 100644
--- a/beacon_chain/consensus_object_pools/README.md
+++ b/beacon_chain/consensus_object_pools/README.md
@@ -6,10 +6,10 @@ Object in those pools have passed the "gossip validation" filter according
 to specs:
 - blocks: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#beacon_block
 - aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
-- voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#voluntary_exit
-- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#attester_slashing
-- Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#proposer_slashing
+- 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-beta.5/specs/phase0/p2p-interface.md#voluntary_exit
+- Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/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
 
 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/attestation_pool.nim b/beacon_chain/consensus_object_pools/attestation_pool.nim
index becd7ee4c..1631d4945 100644
--- a/beacon_chain/consensus_object_pools/attestation_pool.nim
+++ b/beacon_chain/consensus_object_pools/attestation_pool.nim
@@ -739,7 +739,7 @@ func getAggregatedAttestation*(pool: var AttestationPool,
                                index: CommitteeIndex): Opt[Attestation] =
   ## Select the attestation that has the most votes going for it in the given
   ## slot/index
-  ## https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/phase0/validator.md#construct-aggregate
+  ## https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/validator.md#construct-aggregate
   let candidateIdx = pool.candidateIdx(slot)
   if candidateIdx.isNone:
     return Opt.none(Attestation)
diff --git a/beacon_chain/el/el_manager.nim b/beacon_chain/el/el_manager.nim
index fc57cb198..c233aea53 100644
--- a/beacon_chain/el/el_manager.nim
+++ b/beacon_chain/el/el_manager.nim
@@ -1697,7 +1697,7 @@ template trackFinalizedState*(m: ELManager,
                               finalizedStateDepositIndex: uint64): bool =
   trackFinalizedState(m.eth1Chain, finalizedEth1Data, finalizedStateDepositIndex)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/phase0/validator.md#get_eth1_data
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/validator.md#get_eth1_data
 proc getBlockProposalData*(chain: var Eth1Chain,
                            state: ForkedHashedBeaconState,
                            finalizedEth1Data: Eth1Data,
diff --git a/beacon_chain/gossip_processing/README.md b/beacon_chain/gossip_processing/README.md
index 1f1fe4b4b..b95c66ec3 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/v1.4.0-beta.4/specs/phase0/p2p-interface.md#beacon_block
+- Blocks: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_block
 - Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#attestation-subnets
+- Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/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.4/specs/phase0/p2p-interface.md#proposer_slashing
-- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/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
+- Attester slashing: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.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/gossip_processing/gossip_validation.nim b/beacon_chain/gossip_processing/gossip_validation.nim
index 1cf8676ca..8d2e8e853 100644
--- a/beacon_chain/gossip_processing/gossip_validation.nim
+++ b/beacon_chain/gossip_processing/gossip_validation.nim
@@ -618,7 +618,7 @@ proc validateBeaconBlock*(
   ok()
 
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.2/specs/deneb/p2p-interface.md#beacon_aggregate_and_proof
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/p2p-interface.md#beacon_aggregate_and_proof
 proc validateAttestation*(
     pool: ref AttestationPool,
     batchCrypto: ref BatchCrypto,
@@ -789,7 +789,7 @@ proc validateAttestation*(
   return ok((validator_index, sig))
 
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.2/specs/deneb/p2p-interface.md#beacon_aggregate_and_proof
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/p2p-interface.md#beacon_aggregate_and_proof
 proc validateAggregate*(
     pool: ref AttestationPool,
     batchCrypto: ref BatchCrypto,
@@ -1097,7 +1097,7 @@ proc validateProposerSlashing*(
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#voluntary_exit
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#voluntary_exit
 proc validateVoluntaryExit*(
     pool: ValidatorChangePool, signed_voluntary_exit: SignedVoluntaryExit):
     Result[void, ValidationError] =
diff --git a/beacon_chain/libnimbus_lc/libnimbus_lc.h b/beacon_chain/libnimbus_lc/libnimbus_lc.h
index 6ec291432..1c3cb5c65 100644
--- a/beacon_chain/libnimbus_lc/libnimbus_lc.h
+++ b/beacon_chain/libnimbus_lc/libnimbus_lc.h
@@ -94,7 +94,7 @@ typedef struct ETHConsensusConfig ETHConsensusConfig;
  *         based on the given `config.yaml` file content - If successful.
  * @return `NULL` - If the given `config.yaml` is malformed or incompatible.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/configs/README.md
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/configs/README.md
  */
 ETH_RESULT_USE_CHECK
 ETHConsensusConfig *ETHConsensusConfigCreateFromYaml(const char *configFileContent);
@@ -149,9 +149,9 @@ typedef struct ETHBeaconState ETHBeaconState;
  *         representation - If successful.
  * @return `NULL` - If the given `sszBytes` is malformed.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/phase0/beacon-chain.md#beaconstate
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/beacon-chain.md#beaconstate
  * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/beacon-chain.md#beaconstate
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/bellatrix/beacon-chain.md#beaconstate
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/bellatrix/beacon-chain.md#beaconstate
  * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/capella/beacon-chain.md#beaconstate
  * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/configs/README.md
  */
@@ -218,7 +218,7 @@ typedef struct ETHForkDigests ETHForkDigests;
  *
  * @return Pointer to an initialized fork digests cache based on the beacon state.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/beacon-chain.md#compute_fork_digest
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/beacon-chain.md#compute_fork_digest
  */
 ETH_RESULT_USE_CHECK
 ETHForkDigests *ETHForkDigestsCreateFromState(
@@ -323,7 +323,7 @@ typedef struct ETHLightClientStore ETHLightClientStore;
  * @see https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Beacon/getLightClientBootstrap
  * @see https://ethereum.github.io/beacon-APIs/?urls.primaryName=v2.4.1#/Events/eventstream
  * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/light-client/light-client.md
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.0/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/weak-subjectivity.md#weak-subjectivity-period
  */
 ETH_RESULT_USE_CHECK
 ETHLightClientStore *ETHLightClientStoreCreateFromBootstrap(
@@ -631,7 +631,7 @@ const ETHLightClientHeader *ETHLightClientStoreGetOptimisticHeader(
  *
  * @return Light client store safety threshold.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/altair/light-client/sync-protocol.md#get_safety_threshold
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/light-client/sync-protocol.md#get_safety_threshold
  */
 ETH_RESULT_USE_CHECK
 int ETHLightClientStoreGetSafetyThreshold(const ETHLightClientStore *store);
@@ -692,7 +692,7 @@ typedef struct ETHBeaconBlockHeader ETHBeaconBlockHeader;
  *
  * @return Beacon block header.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/beacon-chain.md#beaconblockheader
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/beacon-chain.md#beaconblockheader
  */
 ETH_RESULT_USE_CHECK
 const ETHBeaconBlockHeader *ETHLightClientHeaderGetBeacon(
@@ -772,7 +772,7 @@ const ETHRoot *ETHBeaconBlockHeaderGetBodyRoot(const ETHBeaconBlockHeader *beaco
  *
  * @return Pointer to a copy of the given header's execution block hash.
  *
- * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/deneb/beacon-chain.md#executionpayloadheader
+ * @see https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/beacon-chain.md#executionpayloadheader
  */
 ETH_RESULT_USE_CHECK
 ETHRoot *ETHLightClientHeaderCopyExecutionHash(
diff --git a/beacon_chain/networking/eth2_network.nim b/beacon_chain/networking/eth2_network.nim
index 884b64bea..a092ef059 100644
--- a/beacon_chain/networking/eth2_network.nim
+++ b/beacon_chain/networking/eth2_network.nim
@@ -2245,7 +2245,7 @@ proc getPersistentNetKeys*(
 
 func gossipId(
     data: openArray[byte], phase0Prefix, topic: string): seq[byte] =
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#topics-and-messages
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#topics-and-messages
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/p2p-interface.md#topics-and-messages
   const MESSAGE_DOMAIN_VALID_SNAPPY = [0x01'u8, 0x00, 0x00, 0x00]
   let messageDigest = withEth2Hash:
@@ -2525,7 +2525,7 @@ proc broadcast(node: Eth2Node, topic: string, msg: auto):
 
 proc subscribeAttestationSubnets*(
     node: Eth2Node, subnets: AttnetBits, forkDigest: ForkDigest) =
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#attestations-and-aggregation
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.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
 
@@ -2545,14 +2545,14 @@ proc unsubscribeAttestationSubnets*(
       node.unsubscribe(getAttestationTopic(forkDigest, SubnetId(subnet_id)))
 
 proc updateStabilitySubnetMetadata*(node: Eth2Node, attnets: AttnetBits) =
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#metadata
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#metadata
   if node.metadata.attnets == attnets:
     return
 
   node.metadata.seq_number += 1
   node.metadata.attnets = attnets
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#attestation-subnet-subscription
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#attestation-subnet-subscription
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#attestation-subnet-bitfield
   let res = node.discovery.updateRecord({
     enrAttestationSubnetsField: SSZ.encode(node.metadata.attnets)
diff --git a/beacon_chain/nimbus_beacon_node.nim b/beacon_chain/nimbus_beacon_node.nim
index 2d1840641..6c63d623b 100644
--- a/beacon_chain/nimbus_beacon_node.nim
+++ b/beacon_chain/nimbus_beacon_node.nim
@@ -1677,7 +1677,7 @@ proc installMessageValidators(node: BeaconNode) =
               MsgSource.gossip, attesterSlashing)))
 
       # proposer_slashing
-      # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#proposer_slashing
+      # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#proposer_slashing
       node.network.addValidator(
         getProposerSlashingsTopic(digest), proc (
           proposerSlashing: ProposerSlashing
@@ -1687,7 +1687,7 @@ proc installMessageValidators(node: BeaconNode) =
               MsgSource.gossip, proposerSlashing)))
 
       # voluntary_exit
-      # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#voluntary_exit
+      # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#voluntary_exit
       node.network.addValidator(
         getVoluntaryExitsTopic(digest), proc (
           signedVoluntaryExit: SignedVoluntaryExit
diff --git a/beacon_chain/spec/beacon_time.nim b/beacon_chain/spec/beacon_time.nim
index 98576b72f..767955480 100644
--- a/beacon_chain/spec/beacon_time.nim
+++ b/beacon_chain/spec/beacon_time.nim
@@ -216,7 +216,7 @@ iterator slots*(epoch: Epoch): Slot =
   for slot in start_slot ..< start_slot + SLOTS_PER_EPOCH:
     yield slot
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/altair/validator.md#sync-committee
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/validator.md#sync-committee
 template sync_committee_period*(epoch: Epoch): SyncCommitteePeriod =
   if epoch == FAR_FUTURE_EPOCH: FAR_FUTURE_PERIOD
   else: SyncCommitteePeriod(epoch div EPOCHS_PER_SYNC_COMMITTEE_PERIOD)
diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 42db54893..1c9a84e34 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -547,7 +547,7 @@ func get_attestation_participation_flag_indices(
 
   participation_flag_indices
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/deneb/beacon-chain.md#modified-get_attestation_participation_flag_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/beacon-chain.md#modified-get_attestation_participation_flag_indices
 func get_attestation_participation_flag_indices(
     state: deneb.BeaconState,
     data: AttestationData, inclusion_delay: uint64): set[TimelyFlag] =
diff --git a/beacon_chain/spec/datatypes/altair.nim b/beacon_chain/spec/datatypes/altair.nim
index 2f0812285..c337cdb6c 100644
--- a/beacon_chain/spec/datatypes/altair.nim
+++ b/beacon_chain/spec/datatypes/altair.nim
@@ -60,7 +60,7 @@ const
   # The first member (`genesis_time`) is 32, subsequent members +1 each.
   # If there are ever more than 32 members in `BeaconState`, indices change!
   # `FINALIZED_ROOT_GINDEX` is one layer deeper, i.e., `52 * 2 + 1`.
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/ssz/merkle-proofs.md
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/ssz/merkle-proofs.md
   FINALIZED_ROOT_GINDEX* = 105.GeneralizedIndex  # finalized_checkpoint > root
   CURRENT_SYNC_COMMITTEE_GINDEX* = 54.GeneralizedIndex  # current_sync_committee
   NEXT_SYNC_COMMITTEE_GINDEX* = 55.GeneralizedIndex  # next_sync_committee
diff --git a/beacon_chain/spec/datatypes/base.nim b/beacon_chain/spec/datatypes/base.nim
index d9037fef7..525346ba0 100644
--- a/beacon_chain/spec/datatypes/base.nim
+++ b/beacon_chain/spec/datatypes/base.nim
@@ -488,7 +488,7 @@ type
     withdrawable_epoch*: Epoch
       ## When validator can withdraw funds
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#eth2-field
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#eth2-field
   ENRForkID* = object
     fork_digest*: ForkDigest
     next_fork_version*: Version
diff --git a/beacon_chain/spec/datatypes/constants.nim b/beacon_chain/spec/datatypes/constants.nim
index f36bd2114..30a842b3c 100644
--- a/beacon_chain/spec/datatypes/constants.nim
+++ b/beacon_chain/spec/datatypes/constants.nim
@@ -21,7 +21,7 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#constants
   NODE_ID_BITS* = 256
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#configuration
   EPOCHS_PER_SUBNET_SUBSCRIPTION* = 256'u64
   SUBNETS_PER_NODE* = 2'u64
   ATTESTATION_SUBNET_COUNT*: uint64 = 64
diff --git a/beacon_chain/spec/datatypes/deneb.nim b/beacon_chain/spec/datatypes/deneb.nim
index cccdf8889..b293211fb 100644
--- a/beacon_chain/spec/datatypes/deneb.nim
+++ b/beacon_chain/spec/datatypes/deneb.nim
@@ -37,7 +37,7 @@ const
   BLS_MODULUS* = "52435875175126190479447740508185965837690552500527637822603658699938581184513".u256
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/deneb/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/beacon-chain.md#beaconblockbody
   KzgCommitments* = List[KzgCommitment, Limit MAX_BLOB_COMMITMENTS_PER_BLOCK]
 
   # TODO this apparently is suppposed to be SSZ-equivalent to Bytes32, but
diff --git a/beacon_chain/spec/keystore.nim b/beacon_chain/spec/keystore.nim
index df9987365..13c014334 100644
--- a/beacon_chain/spec/keystore.nim
+++ b/beacon_chain/spec/keystore.nim
@@ -1385,7 +1385,7 @@ proc createWallet*(kdfKind: KdfKind,
     crypto: crypto,
     nextAccount: nextAccount.get(0))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.3/specs/phase0/validator.md#bls_withdrawal_prefix
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/validator.md#bls_withdrawal_prefix
 func makeWithdrawalCredentials*(k: ValidatorPubKey): Eth2Digest =
   var bytes = eth2digest(k.toRaw())
   bytes.data[0] = BLS_WITHDRAWAL_PREFIX.uint8
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index 44764abf2..a04848a6d 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -30,7 +30,7 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/light-client/p2p-interface.md#configuration
   MAX_REQUEST_LIGHT_CLIENT_UPDATES* = 128
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.2/specs/deneb/p2p-interface.md#configuration
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/p2p-interface.md#configuration
   MAX_REQUEST_BLOB_SIDECARS*: uint64 =
     MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK
 
@@ -100,7 +100,7 @@ func getSyncCommitteeContributionAndProofTopic*(forkDigest: ForkDigest): string
   ## For subscribing and unsubscribing to/from a subnet.
   eth2Prefix(forkDigest) & "sync_committee_contribution_and_proof/ssz_snappy"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/deneb/p2p-interface.md#blob_sidecar_subnet_id
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/deneb/p2p-interface.md#blob_sidecar_subnet_id
 func getBlobSidecarTopic*(forkDigest: ForkDigest,
                           subnet_id: BlobId): string =
   eth2Prefix(forkDigest) & "blob_sidecar_" & $subnet_id & "/ssz_snappy"
@@ -193,7 +193,7 @@ func getTargetGossipState*(
   targetForks
 
 func nearSyncCommitteePeriod*(epoch: Epoch): Opt[uint64] =
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/altair/validator.md#sync-committee-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/validator.md#sync-committee-subnet-stability
   if epoch.is_sync_committee_period():
     return Opt.some 0'u64
   let epochsBefore =
diff --git a/beacon_chain/spec/signatures.nim b/beacon_chain/spec/signatures.nim
index b6b7cba69..e189ff9da 100644
--- a/beacon_chain/spec/signatures.nim
+++ b/beacon_chain/spec/signatures.nim
@@ -59,7 +59,7 @@ func compute_epoch_signing_root*(
   let domain = get_domain(fork, DOMAIN_RANDAO, epoch, genesis_validators_root)
   compute_signing_root(epoch, domain)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/validator.md#randao-reveal
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/validator.md#randao-reveal
 func get_epoch_signature*(
     fork: Fork, genesis_validators_root: Eth2Digest, epoch: Epoch,
     privkey: ValidatorPrivKey): CookedSig =
diff --git a/beacon_chain/spec/state_transition.nim b/beacon_chain/spec/state_transition.nim
index 69c2dbaca..5bfc7b8ab 100644
--- a/beacon_chain/spec/state_transition.nim
+++ b/beacon_chain/spec/state_transition.nim
@@ -53,7 +53,7 @@ export results, extras
 logScope:
   topics = "state_transition"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-alpha.3/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc verify_block_signature(
     state: ForkyBeaconState, signed_block: SomeForkySignedBeaconBlock):
     Result[void, cstring] =
diff --git a/beacon_chain/spec/state_transition_epoch.nim b/beacon_chain/spec/state_transition_epoch.nim
index 8085df4c8..b809edc23 100644
--- a/beacon_chain/spec/state_transition_epoch.nim
+++ b/beacon_chain/spec/state_transition_epoch.nim
@@ -6,7 +6,7 @@
 # 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/v1.4.0-alpha.3/specs/phase0/beacon-chain.md#epoch-processing
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/bellatrix/beacon-chain.md#epoch-processing
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/capella/beacon-chain.md#epoch-processing
@@ -173,7 +173,7 @@ func is_eligible_validator*(validator: ParticipationInfo): bool =
 
 from ./datatypes/deneb import BeaconState
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/beacon-chain.md#get_unslashed_participating_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/beacon-chain.md#get_unslashed_participating_indices
 func get_unslashed_participating_balances*(
     state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
            deneb.BeaconState): UnslashedParticipatingBalances =
@@ -1214,7 +1214,7 @@ proc process_epoch*(
 
   process_inactivity_updates(cfg, state, info)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/beacon-chain.md#rewards-and-penalties
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/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.5/specs/phase0/beacon-chain.md#registry-updates
diff --git a/beacon_chain/spec/validator.nim b/beacon_chain/spec/validator.nim
index 12e1e311b..fdb4a9fc6 100644
--- a/beacon_chain/spec/validator.nim
+++ b/beacon_chain/spec/validator.nim
@@ -513,7 +513,7 @@ func livenessFailsafeInEffect*(
 
   false
 
-# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#attestation-subnet-subscription
+# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#attestation-subnet-subscription
 func compute_subscribed_subnet(node_id: UInt256, epoch: Epoch, index: uint64):
     SubnetId =
   # Ensure neither `truncate` loses information
diff --git a/beacon_chain/validators/beacon_validators.nim b/beacon_chain/validators/beacon_validators.nim
index c1830129d..d6ea5caa6 100644
--- a/beacon_chain/validators/beacon_validators.nim
+++ b/beacon_chain/validators/beacon_validators.nim
@@ -1837,7 +1837,7 @@ proc handleValidatorDuties*(node: BeaconNode, lastSlot, slot: Slot) {.async.} =
   updateValidatorMetrics(node) # the important stuff is done, update the vanity numbers
 
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#broadcast-aggregate
-  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/altair/validator.md#broadcast-sync-committee-contribution
+  # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/altair/validator.md#broadcast-sync-committee-contribution
   # Wait 2 / 3 of the slot time to allow messages to propagate, then collect
   # the result in aggregates
   static:
diff --git a/beacon_chain/validators/slashing_protection_v2.nim b/beacon_chain/validators/slashing_protection_v2.nim
index 3d3acc001..6639b0638 100644
--- a/beacon_chain/validators/slashing_protection_v2.nim
+++ b/beacon_chain/validators/slashing_protection_v2.nim
@@ -58,7 +58,7 @@ export results
 #   2. An attester can get slashed for signing
 #      two attestations that together violate
 #      the Casper FFG slashing conditions.
-# - https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/validator.md#ffg-vote
+# - https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/validator.md#ffg-vote
 #   The "source" is the current_justified_epoch
 #   The "target" is the current_epoch
 #
diff --git a/docs/attestation_flow.md b/docs/attestation_flow.md
index 9f549d3a0..e89191c33 100644
--- a/docs/attestation_flow.md
+++ b/docs/attestation_flow.md
@@ -7,7 +7,7 @@ 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/v1.4.0-alpha.1/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.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/v1.4.0-beta.5/specs/phase0/beacon-chain.md#attestations
 
@@ -51,8 +51,8 @@ These GossipSub topics are used to listen for attestations:
 - Unaggregated: `/eth2/{$forkDigest}/beacon_attestation_{subnetIndex}/ssz_snappy`
 
 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/v1.4.0-beta.4/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.4/specs/phase0/p2p-interface.md#attestation-subnets
+- https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.5/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.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 f36c07cc3..e39325ebb 100644
--- a/docs/block_flow.md
+++ b/docs/block_flow.md
@@ -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/v1.4.0-beta.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/v1.4.0-beta.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)`