diff --git a/beacon_chain/spec/datatypes/altair.nim b/beacon_chain/spec/datatypes/altair.nim
index b60cb7eb6..8919ec552 100644
--- a/beacon_chain/spec/datatypes/altair.nim
+++ b/beacon_chain/spec/datatypes/altair.nim
@@ -27,7 +27,7 @@ from ssz_serialization/proofs import GeneralizedIndex
 export proofs.GeneralizedIndex
 
 const
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/altair/beacon-chain.md#incentivization-weights
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/beacon-chain.md#incentivization-weights
   TIMELY_SOURCE_WEIGHT* = 14
   TIMELY_TARGET_WEIGHT* = 26
   TIMELY_HEAD_WEIGHT* = 14
@@ -71,7 +71,7 @@ static: doAssert TIMELY_SOURCE_WEIGHT + TIMELY_TARGET_WEIGHT +
 type
   ### New types
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/altair/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/beacon-chain.md#custom-types
   ParticipationFlags* = uint8
 
   EpochParticipationFlags* =
@@ -339,7 +339,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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
@@ -473,7 +473,7 @@ type
     # [New in Altair]
     sync_aggregate*: TrustedSyncAggregate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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 133070b51..9bcd14c6d 100644
--- a/beacon_chain/spec/datatypes/base.nim
+++ b/beacon_chain/spec/datatypes/base.nim
@@ -146,7 +146,7 @@ template ethAmountUnit*(typ: type) {.dirty.} =
 ethAmountUnit Ether
 
 type
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#custom-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#custom-types
   Eth2Domain* = array[32, byte]
 
   ValidatorIndex* = distinct uint32
@@ -191,7 +191,7 @@ type
   # SSZ / hashing purposes
   JustificationBits* = distinct uint8
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#proposerslashing
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#proposerslashing
   ProposerSlashing* = object
     signed_header_1*: SignedBeaconBlockHeader
     signed_header_2*: SignedBeaconBlockHeader
@@ -203,7 +203,7 @@ type
     signed_header_1*: TrustedSignedBeaconBlockHeader
     signed_header_2*: TrustedSignedBeaconBlockHeader
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#attesterslashing
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#attesterslashing
   AttesterSlashing* = object
     attestation_1*: IndexedAttestation
     attestation_2*: IndexedAttestation
@@ -215,7 +215,7 @@ type
     attestation_1*: TrustedIndexedAttestation
     attestation_2*: TrustedIndexedAttestation
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#indexedattestation
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#indexedattestation
   IndexedAttestation* = object
     attesting_indices*: List[uint64, Limit MAX_VALIDATORS_PER_COMMITTEE]
     data*: AttestationData
@@ -231,7 +231,7 @@ type
 
   CommitteeValidatorsBits* = BitList[Limit MAX_VALIDATORS_PER_COMMITTEE]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#attestation
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#attestation
   Attestation* = object
     aggregation_bits*: CommitteeValidatorsBits
     data*: AttestationData
@@ -247,17 +247,17 @@ type
 
   ForkDigest* = distinct array[4, byte]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#forkdata
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#forkdata
   ForkData* = object
     current_version*: Version
     genesis_validators_root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#checkpoint
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#checkpoint
   Checkpoint* = object
     epoch*: Epoch
     root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#AttestationData
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#AttestationData
   AttestationData* = object
     slot*: Slot
 
@@ -270,14 +270,14 @@ type
     source*: Checkpoint
     target*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#deposit
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/v1.3.0-rc.5/specs/phase0/beacon-chain.md#depositmessage
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#depositmessage
   DepositMessage* = object
     pubkey*: ValidatorPubKey
     withdrawal_credentials*: Eth2Digest
@@ -321,7 +321,7 @@ type
     pubkey*: CookedPubKey
     withdrawal_credentials*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#validator
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#validator
   Validator* = object
     pubkey*: ValidatorPubKey
 
@@ -352,12 +352,12 @@ type
 
     proposer_index*: uint64 # `ValidatorIndex` after validation
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#historicalbatch
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/v1.3.0-rc.5/specs/phase0/beacon-chain.md#fork
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#fork
   Fork* = object
     previous_version*: Version
     current_version*: Version
@@ -365,13 +365,13 @@ type
     epoch*: Epoch
       ## Epoch of latest fork
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#eth1data
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#eth1data
   Eth1Data* = object
     deposit_root*: Eth2Digest
     deposit_count*: uint64
     block_hash*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signedvoluntaryexit
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedvoluntaryexit
   SignedVoluntaryExit* = object
     message*: VoluntaryExit
     signature*: ValidatorSig
@@ -380,7 +380,7 @@ type
     message*: VoluntaryExit
     signature*: TrustedSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblockheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#beaconblockheader
   BeaconBlockHeader* = object
     slot*: Slot
     proposer_index*: uint64 # `ValidatorIndex` after validation
@@ -388,14 +388,14 @@ type
     state_root*: Eth2Digest
     body_root*: Eth2Digest
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signingdata
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signingdata
   SigningData* = object
     object_root*: Eth2Digest
     domain*: Eth2Domain
 
   GraffitiBytes* = distinct array[MAX_GRAFFITI_SIZE, byte]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signedbeaconblockheader
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedbeaconblockheader
   SignedBeaconBlockHeader* = object
     message*: BeaconBlockHeader
     signature*: ValidatorSig
@@ -404,13 +404,13 @@ type
     message*: BeaconBlockHeader
     signature*: TrustedSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#aggregateandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#aggregateandproof
   AggregateAndProof* = object
     aggregator_index*: uint64 # `ValidatorIndex` after validation
     aggregate*: Attestation
     selection_proof*: ValidatorSig
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#signedaggregateandproof
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#signedaggregateandproof
   SignedAggregateAndProof* = object
     message*: AggregateAndProof
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/bellatrix.nim b/beacon_chain/spec/datatypes/bellatrix.nim
index 516cc1b13..e38ee2090 100644
--- a/beacon_chain/spec/datatypes/bellatrix.nim
+++ b/beacon_chain/spec/datatypes/bellatrix.nim
@@ -171,7 +171,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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
@@ -306,7 +306,7 @@ type
     # Execution
     execution_payload*: ExecutionPayload  # [New in Bellatrix]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/capella.nim b/beacon_chain/spec/datatypes/capella.nim
index c3462b0b8..737f9dbbc 100644
--- a/beacon_chain/spec/datatypes/capella.nim
+++ b/beacon_chain/spec/datatypes/capella.nim
@@ -299,7 +299,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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
@@ -441,7 +441,7 @@ type
     # Capella operations
     bls_to_execution_changes*: SignedBLSToExecutionChangeList  # [New in Capella]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/datatypes/constants.nim b/beacon_chain/spec/datatypes/constants.nim
index 7db0c2673..1fa86ccef 100644
--- a/beacon_chain/spec/datatypes/constants.nim
+++ b/beacon_chain/spec/datatypes/constants.nim
@@ -21,7 +21,7 @@ const
   FAR_FUTURE_EPOCH* = Epoch(not 0'u64)
   FAR_FUTURE_PERIOD* = SyncCommitteePeriod(not 0'u64)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#domain-types
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#domain-types
   DOMAIN_BEACON_PROPOSER* = DomainType([byte 0x00, 0x00, 0x00, 0x00])
   DOMAIN_BEACON_ATTESTER* = DomainType([byte 0x01, 0x00, 0x00, 0x00])
   DOMAIN_RANDAO* = DomainType([byte 0x02, 0x00, 0x00, 0x00])
@@ -39,7 +39,7 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/capella/beacon-chain.md#domain-types
   DOMAIN_BLS_TO_EXECUTION_CHANGE* = DomainType([byte 0x0a, 0x00, 0x00, 0x00])
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/beacon-chain.md
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/beacon-chain.md#domain-types
   DOMAIN_BLOB_SIDECAR* = DomainType([byte 0x0b, 0x00, 0x00, 0x00])
 
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/bellatrix/beacon-chain.md#transition-settings
@@ -48,5 +48,5 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/fork-choice.md#configuration
   PROPOSER_SCORE_BOOST*: uint64 = 40
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#misc
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#misc
   ATTESTATION_SUBNET_COUNT*: uint64 = 64
diff --git a/beacon_chain/spec/datatypes/deneb.nim b/beacon_chain/spec/datatypes/deneb.nim
index 99cafefe6..217e019c8 100644
--- a/beacon_chain/spec/datatypes/deneb.nim
+++ b/beacon_chain/spec/datatypes/deneb.nim
@@ -152,7 +152,7 @@ type
       ## Execution payload header corresponding to `beacon.body_root` (from Capella onward)
     execution_branch*: capella.ExecutionBranch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
   LightClientBootstrap* = object
     header*: LightClientHeader
       ## Header matching the requested beacon block root
@@ -220,7 +220,7 @@ type
     LightClientBootstrap |
     SomeLightClientUpdate
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/altair/light-client/sync-protocol.md#lightclientstore
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/light-client/sync-protocol.md#lightclientstore
   LightClientStore* = object
     finalized_header*: LightClientHeader
       ## Header that is finalized
@@ -319,7 +319,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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
@@ -376,7 +376,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
@@ -457,7 +457,7 @@ type
     bls_to_execution_changes*: SignedBLSToExecutionChangeList
     blob_kzg_commitments*: KzgCommitments  # [New in Deneb]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
@@ -581,7 +581,7 @@ func shortLog*(v: ExecutionPayload): auto =
 func shortLog*(x: seq[BlobIdentifier]): string =
   "[" & x.mapIt(shortLog(it.block_root) & "/" & $it.index).join(", ") & "]"
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/sync-protocol.md#modified-get_lc_execution_root
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/sync-protocol.md#modified-get_lc_execution_root
 func get_lc_execution_root*(
     header: LightClientHeader, cfg: RuntimeConfig): Eth2Digest =
   let epoch = header.beacon.slot.epoch
@@ -610,7 +610,7 @@ func get_lc_execution_root*(
 
   ZERO_HASH
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/sync-protocol.md#modified-is_valid_light_client_header
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/sync-protocol.md#modified-is_valid_light_client_header
 func is_valid_light_client_header*(
     header: LightClientHeader, cfg: RuntimeConfig): bool =
   let epoch = header.beacon.slot.epoch
@@ -631,7 +631,7 @@ func is_valid_light_client_header*(
     get_subtree_index(EXECUTION_PAYLOAD_INDEX),
     header.beacon.body_root)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_header_to_deneb*(
     pre: capella.LightClientHeader): LightClientHeader =
   LightClientHeader(
@@ -654,7 +654,7 @@ func upgrade_lc_header_to_deneb*(
         withdrawals_root: pre.execution.withdrawals_root),
     execution_branch: pre.execution_branch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_bootstrap_to_deneb*(
     pre: capella.LightClientBootstrap): LightClientBootstrap =
   LightClientBootstrap(
@@ -662,7 +662,7 @@ func upgrade_lc_bootstrap_to_deneb*(
     current_sync_committee: pre.current_sync_committee,
     current_sync_committee_branch: pre.current_sync_committee_branch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_update_to_deneb*(
     pre: capella.LightClientUpdate): LightClientUpdate =
   LightClientUpdate(
@@ -674,7 +674,7 @@ func upgrade_lc_update_to_deneb*(
     sync_aggregate: pre.sync_aggregate,
     signature_slot: pre.signature_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_finality_update_to_deneb*(
     pre: capella.LightClientFinalityUpdate): LightClientFinalityUpdate =
   LightClientFinalityUpdate(
@@ -684,7 +684,7 @@ func upgrade_lc_finality_update_to_deneb*(
     sync_aggregate: pre.sync_aggregate,
     signature_slot: pre.signature_slot)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-light-client-data
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-light-client-data
 func upgrade_lc_optimistic_update_to_deneb*(
     pre: capella.LightClientOptimisticUpdate): LightClientOptimisticUpdate =
   LightClientOptimisticUpdate(
@@ -735,7 +735,7 @@ chronicles.formatIt LightClientUpdate: shortLog(it)
 chronicles.formatIt LightClientFinalityUpdate: shortLog(it)
 chronicles.formatIt LightClientOptimisticUpdate: shortLog(it)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/deneb/light-client/fork.md#upgrading-the-store
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/light-client/fork.md#upgrading-the-store
 func upgrade_lc_store_to_deneb*(
     pre: capella.LightClientStore): LightClientStore =
   let best_valid_update =
diff --git a/beacon_chain/spec/datatypes/phase0.nim b/beacon_chain/spec/datatypes/phase0.nim
index c7a158e4b..a9161eed9 100644
--- a/beacon_chain/spec/datatypes/phase0.nim
+++ b/beacon_chain/spec/datatypes/phase0.nim
@@ -73,7 +73,7 @@ type
     current_justified_checkpoint*: Checkpoint
     finalized_checkpoint*: Checkpoint
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#get_total_balance
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#get_total_balance
   TotalBalances* = object
     # The total effective balance of all active validators during the _current_
     # epoch.
@@ -111,7 +111,7 @@ type
     data*: BeaconState
     root*: Eth2Digest # hash_tree_root(data)
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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
@@ -219,7 +219,7 @@ type
     deposits*: List[Deposit, Limit MAX_DEPOSITS]
     voluntary_exits*: List[TrustedSignedVoluntaryExit, Limit MAX_VOLUNTARY_EXITS]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#signedbeaconblock
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#signedbeaconblock
   SignedBeaconBlock* = object
     message*: BeaconBlock
     signature*: ValidatorSig
diff --git a/beacon_chain/spec/presets/gnosis/bellatrix_preset.nim b/beacon_chain/spec/presets/gnosis/bellatrix_preset.nim
index 6189841f3..321417710 100644
--- a/beacon_chain/spec/presets/gnosis/bellatrix_preset.nim
+++ b/beacon_chain/spec/presets/gnosis/bellatrix_preset.nim
@@ -1,5 +1,12 @@
-# Mainnet preset - Bellatrix
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/presets/mainnet/bellatrix.yaml
+# beacon_chain
+# Copyright (c) 2023 Status Research & Development GmbH
+# Licensed and distributed under either of
+#   * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
+#   * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
+# Gnosis preset - Bellatrix
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/presets/mainnet/bellatrix.yaml
 const
   # Updated penalty values
   # ---------------------------------------------------------------
diff --git a/beacon_chain/spec/state_transition.nim b/beacon_chain/spec/state_transition.nim
index 9b22047c6..54dbdd112 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/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 #
 # The entry point is `state_transition` which is at the bottom of the file!
 #
@@ -51,7 +51,7 @@ import
 
 export results, extras, phase0, altair, bellatrix
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc verify_block_signature(
     state: ForkyBeaconState, signed_block: SomeForkySignedBeaconBlock):
     Result[void, cstring] =
@@ -98,7 +98,7 @@ func noRollback*() =
 # Hashed-state transition functions
 # ---------------------------------------------------------------
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 func process_slot*(
     state: var ForkyBeaconState, pre_state_root: Eth2Digest) =
   # `process_slot` is the first stage of per-slot processing - it is run for
@@ -124,7 +124,7 @@ func clear_epoch_from_cache(cache: var StateCache, epoch: Epoch) =
   for slot in epoch.slots():
     cache.beacon_proposer_indices.del slot
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#beacon-chain-state-transition-function
 proc advance_slot(
     cfg: RuntimeConfig,
     state: var ForkyBeaconState, previous_slot_state_root: Eth2Digest,
@@ -333,7 +333,7 @@ proc state_transition*(
   state_transition_block(
     cfg, state, signedBlock, cache, flags, rollback)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#preparing-for-a-beaconblock
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#preparing-for-a-beaconblock
 template partialBeaconBlock*(
     cfg: RuntimeConfig,
     state: var phase0.HashedBeaconState,
@@ -390,7 +390,7 @@ template partialBeaconBlock*(
       voluntary_exits: validator_changes.voluntary_exits,
       sync_aggregate: sync_aggregate))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.3/specs/merge/validator.md#block-proposal
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/bellatrix/validator.md#block-proposal
 template partialBeaconBlock*(
     cfg: RuntimeConfig,
     state: var bellatrix.HashedBeaconState,
@@ -420,7 +420,7 @@ template partialBeaconBlock*(
       sync_aggregate: sync_aggregate,
       execution_payload: execution_payload.executionPayload))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.3/specs/merge/validator.md#block-proposal
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/capella/validator.md#block-proposal
 template partialBeaconBlock*(
     cfg: RuntimeConfig,
     state: var capella.HashedBeaconState,
diff --git a/beacon_chain/spec/validator.nim b/beacon_chain/spec/validator.nim
index 11cdd56ee..34af072b8 100644
--- a/beacon_chain/spec/validator.nim
+++ b/beacon_chain/spec/validator.nim
@@ -21,8 +21,8 @@ const
   PIVOT_VIEW_SIZE = SEED_SIZE + ROUND_SIZE
   TOTAL_SIZE = PIVOT_VIEW_SIZE + POSITION_WINDOW_SIZE
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#compute_shuffled_index
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/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) =
@@ -152,13 +152,13 @@ func get_shuffled_active_validator_indices*(
   withState(state):
     cache.get_shuffled_active_validator_indices(forkyState.data, epoch)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#get_active_validator_indices
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/v1.3.0-rc.5/specs/phase0/beacon-chain.md#get_committee_count_per_slot
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/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,
@@ -183,7 +183,7 @@ iterator get_committee_indices*(committee_count_per_slot: uint64): CommitteeInde
     let committee_index = CommitteeIndex.init(idx).expect("value clamped")
     yield committee_index
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#compute_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#compute_committee
 func compute_committee_slice*(
     active_validators, index, count: uint64): Slice[int] =
   doAssert active_validators <= ValidatorIndex.high.uint64
@@ -229,7 +229,7 @@ func compute_committee_len*(
 
   (slice.b - slice.a + 1).uint64
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#get_beacon_committee
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#get_beacon_committee
 iterator get_beacon_committee*(
     state: ForkyBeaconState, slot: Slot, index: CommitteeIndex,
     cache: var StateCache): (int, ValidatorIndex) =
@@ -293,7 +293,7 @@ func get_beacon_committee_len*(
   withState(state):
     get_beacon_committee_len(forkyState.data, slot, index, cache)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#compute_shuffled_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/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``).
@@ -328,7 +328,7 @@ func compute_shuffled_index*(
 
   cur_idx_permuted
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/phase0/beacon-chain.md#compute_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#compute_proposer_index
 func compute_proposer_index(state: ForkyBeaconState,
     indices: seq[ValidatorIndex], seed: Eth2Digest): Opt[ValidatorIndex] =
   ## Return from ``indices`` a random index sampled by effective balance.
@@ -355,7 +355,7 @@ func compute_proposer_index(state: ForkyBeaconState,
       return Opt.some(candidate_index)
     i += 1
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/beacon-chain.md#get_beacon_proposer_index
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#get_beacon_proposer_index
 func get_beacon_proposer_index*(
     state: ForkyBeaconState, cache: var StateCache, slot: Slot):
     Opt[ValidatorIndex] =
diff --git a/beacon_chain/sync/sync_protocol.nim b/beacon_chain/sync/sync_protocol.nim
index 562027a8c..56d174f61 100644
--- a/beacon_chain/sync/sync_protocol.nim
+++ b/beacon_chain/sync/sync_protocol.nim
@@ -424,7 +424,7 @@ p2pProtocol BeaconSync(version = 1,
       peer, roots = blockRoots.len, count, found
 
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.3/specs/deneb/p2p-interface.md#blobsidecarsbyroot-v1
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/deneb/p2p-interface.md#blobsidecarsbyroot-v1
   proc blobSidecarsByRoot(
       peer: Peer,
       blobIds: BlobIdentifierList,
diff --git a/beacon_chain/validators/action_tracker.nim b/beacon_chain/validators/action_tracker.nim
index bbfa7c2a9..f8f62d427 100644
--- a/beacon_chain/validators/action_tracker.nim
+++ b/beacon_chain/validators/action_tracker.nim
@@ -77,7 +77,7 @@ type
 func hash*(x: AggregatorDuty): Hash =
   hashAllFields(x)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#phase-0-attestation-subnet-stability
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#phase-0-attestation-subnet-stability
 func randomStabilitySubnet(
     self: ActionTracker, epoch: Epoch): tuple[subnet_id: SubnetId, expiration: Epoch] =
   (
@@ -175,7 +175,7 @@ proc updateSlot*(tracker: var ActionTracker, wallSlot: Slot) =
   # One stability subnet per known validator
   static: doAssert RANDOM_SUBNETS_PER_VALIDATOR == 1
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#phase-0-attestation-subnet-stability
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#phase-0-attestation-subnet-stability
   let expectedSubnets =
     min(ATTESTATION_SUBNET_COUNT.int, tracker.knownValidators.len)
 
diff --git a/beacon_chain/validators/slashing_protection_v2.nim b/beacon_chain/validators/slashing_protection_v2.nim
index 5a7578937..fe0f4ff26 100644
--- a/beacon_chain/validators/slashing_protection_v2.nim
+++ b/beacon_chain/validators/slashing_protection_v2.nim
@@ -33,7 +33,7 @@ import
 # - https://notes.ethereum.org/@djrtwo/Bkn3zpwxB#Validator-responsibilities
 #
 # Phase 0 spec - Honest Validator - how to avoid slashing
-# - https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#how-to-avoid-slashing
+# - https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#how-to-avoid-slashing
 #
 # In-depth reading on slashing conditions
 #
@@ -55,7 +55,7 @@ import
 #   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/v1.3.0-rc.5/specs/phase0/validator.md#ffg-vote
+# - https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#ffg-vote
 #   The "source" is the current_justified_epoch
 #   The "target" is the current_epoch
 #
diff --git a/beacon_chain/validators/validator_duties.nim b/beacon_chain/validators/validator_duties.nim
index a942cb3e4..72aadfa2b 100644
--- a/beacon_chain/validators/validator_duties.nim
+++ b/beacon_chain/validators/validator_duties.nim
@@ -286,7 +286,7 @@ proc getExecutionPayload(
     PayloadType: type ForkyExecutionPayloadForSigning,
     node: BeaconNode, proposalState: ref ForkedHashedBeaconState,
     epoch: Epoch, validator_index: ValidatorIndex): Future[Opt[PayloadType]] {.async.} =
-  # https://github.com/ethereum/consensus-specs/blob/v1.1.10/specs/bellatrix/validator.md#executionpayload
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/bellatrix/validator.md#executionpayload
 
   let feeRecipient = block:
     let pubkey = node.dag.validatorKey(validator_index)
@@ -1067,7 +1067,7 @@ proc handleAttestations(node: BeaconNode, head: BlockRef, slot: Slot) =
   # We need to run attestations exactly for the slot that we're attesting to.
   # In case blocks went missing, this means advancing past the latest block
   # using empty slots as fillers.
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#validator-assignments
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#validator-assignments
   let
     epochRef = node.dag.getEpochRef(
       attestationHead.blck, slot.epoch, false).valueOr:
@@ -1266,13 +1266,13 @@ proc signAndSendAggregate(
           return
         res.get()
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#aggregation-selection
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#aggregation-selection
     if not is_aggregator(
         shufflingRef, slot, committee_index, selectionProof):
       return
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.4/specs/phase0/validator.md#construct-aggregate
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.4/specs/phase0/validator.md#aggregateandproof
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#construct-aggregate
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#aggregateandproof
     var
       msg = SignedAggregateAndProof(
         message: AggregateAndProof(
@@ -1655,8 +1655,8 @@ 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-rc.4/specs/phase0/validator.md#broadcast-aggregate
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.4/specs/altair/validator.md#broadcast-sync-committee-contribution
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#broadcast-aggregate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/validator_pool.nim b/beacon_chain/validators/validator_pool.nim
index de166b65c..2ce51a42a 100644
--- a/beacon_chain/validators/validator_pool.nim
+++ b/beacon_chain/validators/validator_pool.nim
@@ -443,7 +443,7 @@ proc signData(v: AttachedValidator,
   else:
     v.signWithDistributedKey(request)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#signature
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#signature
 proc getBlockSignature*(v: AttachedValidator, fork: Fork,
                         genesis_validators_root: Eth2Digest, slot: Slot,
                         block_root: Eth2Digest,
@@ -629,7 +629,7 @@ proc getBlockSignature*(v: AttachedValidator, fork: Fork,
                 proofs)
       await v.signData(web3SignerRequest)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#aggregate-signature
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#aggregate-signature
 proc getAttestationSignature*(v: AttachedValidator, fork: Fork,
                               genesis_validators_root: Eth2Digest,
                               data: AttestationData
@@ -645,7 +645,7 @@ proc getAttestationSignature*(v: AttachedValidator, fork: Fork,
       let request = Web3SignerRequest.init(fork, genesis_validators_root, data)
       await v.signData(request)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#broadcast-aggregate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#broadcast-aggregate
 proc getAggregateAndProofSignature*(v: AttachedValidator,
                                     fork: Fork,
                                     genesis_validators_root: Eth2Digest,
@@ -731,7 +731,7 @@ proc getContributionAndProofSignature*(v: AttachedValidator, fork: Fork,
         fork, genesis_validators_root, contribution_and_proof)
       await v.signData(request)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#randao-reveal
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#randao-reveal
 proc getEpochSignature*(v: AttachedValidator, fork: Fork,
                         genesis_validators_root: Eth2Digest, epoch: Epoch
                        ): Future[SignatureResult] {.async.} =
@@ -746,7 +746,7 @@ proc getEpochSignature*(v: AttachedValidator, fork: Fork,
         fork, genesis_validators_root, epoch)
       await v.signData(request)
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#aggregation-selection
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#aggregation-selection
 proc getSlotSignature*(v: AttachedValidator, fork: Fork,
                        genesis_validators_root: Eth2Digest, slot: Slot
                       ): Future[SignatureResult] {.async.} =
diff --git a/docs/attestation_flow.md b/docs/attestation_flow.md
index 4bc7de3a8..c6be06a8a 100644
--- a/docs/attestation_flow.md
+++ b/docs/attestation_flow.md
@@ -9,7 +9,7 @@ It is important to distinguish attestation `validation` from attestation `verifi
   - Aggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
   - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/v1.3.0-rc.5/specs/phase0/beacon-chain.md#attestations
+  - https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#attestations
 
 From the specs it seems like gossip attestation `validation` is a superset of consensus attestation `verification`.
 
diff --git a/docs/block_flow.md b/docs/block_flow.md
index b0f204c3d..8b509366f 100644
--- a/docs/block_flow.md
+++ b/docs/block_flow.md
@@ -9,7 +9,7 @@ Important distinction:
   https://github.com/ethereum/consensus-specs/blob/v1.3.0/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/v1.3.0-rc.3/specs/phase0/beacon-chain.md#block-processing
+  https://github.com/ethereum/consensus-specs/blob/v1.3.0/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:
diff --git a/docs/the_nimbus_book/src/el-light-client.md b/docs/the_nimbus_book/src/el-light-client.md
index a5deac13c..9f9a66ac8 100644
--- a/docs/the_nimbus_book/src/el-light-client.md
+++ b/docs/the_nimbus_book/src/el-light-client.md
@@ -104,7 +104,7 @@ The following sections explain how to do this for certain EL clients.
 ## Running the light client
 
 The light client starts syncing from a trusted block.
-This trusted block should be somewhat recent ([~1-2 weeks](https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/weak-subjectivity.md)) and needs to be configured each time when starting the light client.
+This trusted block should be somewhat recent ([~1-2 weeks](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/weak-subjectivity.md)) and needs to be configured each time when starting the light client.
 
 ### 1. Obtaining a trusted block root
 
diff --git a/docs/the_nimbus_book/src/web3signer.md b/docs/the_nimbus_book/src/web3signer.md
index 8c82779f3..d876a8f49 100644
--- a/docs/the_nimbus_book/src/web3signer.md
+++ b/docs/the_nimbus_book/src/web3signer.md
@@ -125,7 +125,7 @@ If you are already using a threshold signing setup (e.g. based on Vouch and Dirk
 
 The verifying Web3Signer is an experimental extension to the [Web3Signer protocol](https://consensys.github.io/web3signer/web3signer-eth2.html#tag/Signing/operation/ETH2_SIGN) which allows the remote signer to verify certain details of the signed blocks before creating a signature (for example, the signer may require the signed block to have a particular fee recipient value).
 
-To enable this use case, the `BLOCK_V2` request type of the `/api/v1/eth2/sign/{identifier}` endpoint is extended with an additional array field named `proofs`. The array consists of objects with the properties `index`, `proof` and `value`, where `index` is an arbitrary [generalized index](https://github.com/ethereum/consensus-specs/blob/dev/ssz/merkle-proofs.md#generalized-merkle-tree-index) of any property nested under the block body and `proof` is its corresponding merkle proof against the block body root included in the request. The `value` property is optional and it is included only when the SSZ hash of the field included in the merkle proof doesn't match its value.
+To enable this use case, the `BLOCK_V2` request type of the `/api/v1/eth2/sign/{identifier}` endpoint is extended with an additional array field named `proofs`. The array consists of objects with the properties `index`, `proof` and `value`, where `index` is an arbitrary [generalized index](https://github.com/ethereum/consensus-specs/blob/v1.3.0/ssz/merkle-proofs.md#generalized-merkle-tree-index) of any property nested under the block body and `proof` is its corresponding merkle proof against the block body root included in the request. The `value` property is optional and it is included only when the SSZ hash of the field included in the merkle proof doesn't match its value.
 
 Since the generalized index of a particular field may change in a hard-fork, in the remote keystore format the proven fields are usually specified by their name:
 
@@ -145,4 +145,4 @@ 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/dev/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/v1.3.0/specs/phase0/beacon-chain.md#is_valid_merkle_branch) function by utilizing a similar automatic mapping mechanism for the generalized index.
diff --git a/tests/consensus_spec/altair/test_fixture_light_client_sync_protocol.nim b/tests/consensus_spec/altair/test_fixture_light_client_sync_protocol.nim
index fedd3d682..6d637ef20 100644
--- a/tests/consensus_spec/altair/test_fixture_light_client_sync_protocol.nim
+++ b/tests/consensus_spec/altair/test_fixture_light_client_sync_protocol.nim
@@ -22,7 +22,7 @@ import
   # Test utilities
   ../../testutil, ../../testblockutil
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/tests/core/pyspec/eth2spec/test/helpers/sync_committee.py#L27-L44
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/helpers/sync_committee.py#L27-L44
 proc compute_aggregate_sync_committee_signature(
     cfg: RuntimeConfig,
     forked: ForkedHashedBeaconState,
@@ -53,7 +53,7 @@ proc compute_aggregate_sync_committee_signature(
       aggregateSig.aggregate(signature)
   aggregateSig.finish.toValidatorSig
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/tests/core/pyspec/eth2spec/test/helpers/light_client.py#L32-L62
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/helpers/light_client.py#L11-L41
 proc get_sync_aggregate(
     cfg: RuntimeConfig,
     forked: ForkedHashedBeaconState,
@@ -137,7 +137,7 @@ let full_sync_committee_bits = block:
   res.bytes.fill(byte.high)
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/tests/core/pyspec/eth2spec/test/helpers/light_client.py#L20-L29
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/altair/light-client/sync-protocol.md#initialize_light_client_store
 func initialize_light_client_store(
     state: auto, storeDataFork: static LightClientDataFork): auto =
   storeDataFork.LightClientStore(
@@ -160,7 +160,7 @@ proc runTest(storeDataFork: static LightClientDataFork) =
         res
       genesisState = newClone(initGenesisState(cfg = cfg))
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L23-L60
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L32-L61
     test "test_process_light_client_update_not_timeout":
       let forked = assignClone(genesisState[])
       template state(): auto = forked[].altairData.data
@@ -206,7 +206,7 @@ proc runTest(storeDataFork: static LightClientDataFork) =
         store.optimistic_header == update.attested_header
         store.current_max_active_participants > 0
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L63-L104
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L64-L96
     test "test_process_light_client_update_at_period_boundary":
       var forked = assignClone(genesisState[])
       template state(): auto = forked[].altairData.data
@@ -259,7 +259,7 @@ proc runTest(storeDataFork: static LightClientDataFork) =
         store.optimistic_header == update.attested_header
         store.current_max_active_participants > 0
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L107-L149
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L99-L131
     test "process_light_client_update_timeout":
       let forked = assignClone(genesisState[])
       template state(): auto = forked[].altairData.data
@@ -315,7 +315,7 @@ proc runTest(storeDataFork: static LightClientDataFork) =
         store.optimistic_header == update.attested_header
         store.current_max_active_participants > 0
 
-    # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L152-L201
+    # https://github.com/ethereum/consensus-specs/blob/v1.3.0/tests/core/pyspec/eth2spec/test/altair/unittests/light_client/test_sync_protocol.py#L134-L176
     test "process_light_client_update_finality_updated":
       let forked = assignClone(genesisState[])
       template state(): auto = forked[].altairData.data
diff --git a/tests/consensus_spec/fixtures_utils.nim b/tests/consensus_spec/fixtures_utils.nim
index 5e84c6306..d52e0e29a 100644
--- a/tests/consensus_spec/fixtures_utils.nim
+++ b/tests/consensus_spec/fixtures_utils.nim
@@ -70,12 +70,12 @@ type
   UnconsumedInput* = object of CatchableError
   TestSizeError* = object of ValueError
 
-  # https://github.com/ethereum/consensus-specs/tree/v1.3.0-alpha.1/tests/formats/rewards#rewards-tests
+  # https://github.com/ethereum/consensus-specs/tree/v1.3.0/tests/formats/rewards#rewards-tests
   Deltas* = object
     rewards*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
     penalties*: List[uint64, Limit VALIDATOR_REGISTRY_LIMIT]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#eth1block
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#eth1block
   Eth1Block* = object
     timestamp*: uint64
     deposit_root*: Eth2Digest
diff --git a/tests/consensus_spec/test_fixture_fork_choice.nim b/tests/consensus_spec/test_fixture_fork_choice.nim
index bcfe47020..290e22987 100644
--- a/tests/consensus_spec/test_fixture_fork_choice.nim
+++ b/tests/consensus_spec/test_fixture_fork_choice.nim
@@ -28,7 +28,7 @@ import
   ../testutil, ../testdbutil,
   ./fixtures_utils, ./os_ops
 
-# Test format described at https://github.com/ethereum/consensus-specs/tree/v1.2.0-rc.1/tests/formats/fork_choice
+# Test format described at https://github.com/ethereum/consensus-specs/tree/v1.3.0/tests/formats/fork_choice
 # Note that our implementation has been optimized with "ProtoArray"
 # instead of following the spec (in particular the "store").
 
diff --git a/tests/testblockutil.nim b/tests/testblockutil.nim
index 42071f9e7..a368647a6 100644
--- a/tests/testblockutil.nim
+++ b/tests/testblockutil.nim
@@ -267,7 +267,7 @@ func makeAttestationData*(
     "Computed epoch was " & $slot.epoch &
     "  while the state current_epoch was " & $current_epoch
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.5/specs/phase0/validator.md#attestation-data
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/validator.md#attestation-data
   AttestationData(
     slot: slot,
     index: committee_index.uint64,