diff --git a/beacon_chain/consensus_object_pools/README.md b/beacon_chain/consensus_object_pools/README.md
index 42de9efb7..990ea807f 100644
--- a/beacon_chain/consensus_object_pools/README.md
+++ b/beacon_chain/consensus_object_pools/README.md
@@ -6,7 +6,7 @@ Object in those pools have passed the "gossip validation" filter according
 to specs:
 - blocks: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#beacon_block
 - aggregate attestations: https://github.com/ethereum/consensus-specs/blob/v1.1.10/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.2.0-rc.2/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+- unaggregated attestation: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
 - voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#voluntary_exit
 - Attester slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#attester_slashing
 - Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#proposer_slashing
diff --git a/beacon_chain/gossip_processing/README.md b/beacon_chain/gossip_processing/README.md
index 84124578a..41e0d890f 100644
--- a/beacon_chain/gossip_processing/README.md
+++ b/beacon_chain/gossip_processing/README.md
@@ -10,7 +10,7 @@ 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/v1.3.0-rc.0/specs/phase0/p2p-interface.md#beacon_block
-- Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.1.10/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
+- Attestations (aggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
 - Attestations (unaggregated): https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#attestation-subnets
 - Voluntary exits: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#voluntary_exit
 - Proposer slashings: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/phase0/p2p-interface.md#proposer_slashing
diff --git a/beacon_chain/spec/beacon_time.nim b/beacon_chain/spec/beacon_time.nim
index 6b2efd0e3..2ad9dfd57 100644
--- a/beacon_chain/spec/beacon_time.nim
+++ b/beacon_chain/spec/beacon_time.nim
@@ -151,10 +151,10 @@ const
   # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/validator.md#broadcast-sync-committee-contribution
   syncContributionSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64  * 2 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/specs/altair/light-client/p2p-interface.md#sync-committee
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#sync-committee
   lightClientFinalityUpdateSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64 div INTERVALS_PER_SLOT)
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/specs/altair/light-client/p2p-interface.md#sync-committee
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#sync-committee
   lightClientOptimisticUpdateSlotOffset* = TimeDiff(nanoseconds:
     NANOSECONDS_PER_SLOT.int64 div INTERVALS_PER_SLOT)
 
diff --git a/beacon_chain/spec/beaconstate.nim b/beacon_chain/spec/beaconstate.nim
index 2e358dd22..cbf690170 100644
--- a/beacon_chain/spec/beaconstate.nim
+++ b/beacon_chain/spec/beaconstate.nim
@@ -353,7 +353,7 @@ func get_initial_beacon_block*(state: altair.HashedBeaconState):
   altair.TrustedSignedBeaconBlock(
     message: message, root: hash_tree_root(message))
 
-# https://github.com/ethereum/consensus-specs/blob/v1.1.7/specs/merge/beacon-chain.md#testing
+# https://github.com/ethereum/consensus-specs/blob/v1.1.8/specs/bellatrix/beacon-chain.md#testing
 func get_initial_beacon_block*(state: bellatrix.HashedBeaconState):
     bellatrix.TrustedSignedBeaconBlock =
   # The genesis block is implicitly trusted
@@ -818,19 +818,19 @@ func get_next_sync_committee_keys(
     i += 1'u64
   res
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/capella/beacon-chain.md#has_eth1_withdrawal_credential
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/capella/beacon-chain.md#has_eth1_withdrawal_credential
 func has_eth1_withdrawal_credential(validator: Validator): bool =
   ## Check if ``validator`` has an 0x01 prefixed "eth1" withdrawal credential.
   validator.withdrawal_credentials.data[0] == ETH1_ADDRESS_WITHDRAWAL_PREFIX
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/capella/beacon-chain.md#is_fully_withdrawable_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/capella/beacon-chain.md#is_fully_withdrawable_validator
 func is_fully_withdrawable_validator(
     validator: Validator, balance: Gwei, epoch: Epoch): bool =
   ## Check if ``validator`` is fully withdrawable.
   has_eth1_withdrawal_credential(validator) and
     validator.withdrawable_epoch <= epoch and balance > 0
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/capella/beacon-chain.md#is_partially_withdrawable_validator
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/capella/beacon-chain.md#is_partially_withdrawable_validator
 func is_partially_withdrawable_validator(
     validator: Validator, balance: Gwei): bool =
   ## Check if ``validator`` is partially withdrawable.
diff --git a/beacon_chain/spec/datatypes/capella.nim b/beacon_chain/spec/datatypes/capella.nim
index 03a54c022..4e90fed0d 100644
--- a/beacon_chain/spec/datatypes/capella.nim
+++ b/beacon_chain/spec/datatypes/capella.nim
@@ -30,7 +30,7 @@ type
   SignedBLSToExecutionChangeList* =
     List[SignedBLSToExecutionChange, MAX_BLS_TO_EXECUTION_CHANGES]
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/capella/beacon-chain.md#withdrawal
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/capella/beacon-chain.md#withdrawal
   Withdrawal* = object
     index*: WithdrawalIndex
     validator_index*: uint64
diff --git a/beacon_chain/spec/datatypes/eip4844.nim b/beacon_chain/spec/datatypes/eip4844.nim
index b6249d1fc..0289203fb 100644
--- a/beacon_chain/spec/datatypes/eip4844.nim
+++ b/beacon_chain/spec/datatypes/eip4844.nim
@@ -239,7 +239,7 @@ type
     state_root*: Eth2Digest
     body*: TrustedBeaconBlockBody
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/eip4844/beacon-chain.md#beaconblockbody
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/eip4844/beacon-chain.md#beaconblockbody
   BeaconBlockBody* = object
     randao_reveal*: ValidatorSig
     eth1_data*: Eth1Data
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index 5dedf4e36..28b23d83b 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -319,7 +319,7 @@ func contextEpoch*(bootstrap: altair.LightClientBootstrap): Epoch =
   bootstrap.header.slot.epoch
 
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#lightclientupdatesbyrange
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
 # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#getlightclientoptimisticupdate
 func contextEpoch*(update: SomeLightClientUpdate): Epoch =
   update.attested_header.slot.epoch
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index f869d0511..903eccd4c 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -71,7 +71,7 @@ func getAggregateAndProofsTopic*(forkDigest: ForkDigest): string =
 func getBlsToExecutionChangeTopic*(forkDigest: ForkDigest): string =
   eth2Prefix(forkDigest) & topicBlsToExecutionChangeSuffix
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.2/specs/eip4844/p2p-interface.md#topics-and-messages
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/eip4844/p2p-interface.md#topics-and-messages
 func getBeaconBlockAndBlobsSidecarTopic*(forkDigest: ForkDigest): string =
   eth2Prefix(forkDigest) & topicBeaconBlockAndBlobsSidecarTopicSuffix
 
diff --git a/beacon_chain/spec/state_transition_block.nim b/beacon_chain/spec/state_transition_block.nim
index 26a6ddb77..9c5ea4e77 100644
--- a/beacon_chain/spec/state_transition_block.nim
+++ b/beacon_chain/spec/state_transition_block.nim
@@ -795,7 +795,7 @@ proc validate_blobs_sidecar*(slot: Slot, root: Eth2Digest,
 
   ok()
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.1/specs/eip4844/beacon-chain.md#is_data_available
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/eip4844/fork-choice.md#is_data_available
 func is_data_available(
     slot: Slot, beacon_block_root: Eth2Digest,
     blob_kzg_commitments: seq[eip4844.KZGCommitment]): bool =
diff --git a/beacon_chain/sync/light_client_manager.nim b/beacon_chain/sync/light_client_manager.nim
index 34a7636ba..81a7a4b2c 100644
--- a/beacon_chain/sync/light_client_manager.nim
+++ b/beacon_chain/sync/light_client_manager.nim
@@ -166,7 +166,7 @@ proc doRequest(
       inc expectedPeriod
   return response
 
-# https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
+# https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
 proc doRequest(
     e: typedesc[FinalityUpdate],
     peer: Peer
diff --git a/beacon_chain/sync/sync_protocol.nim b/beacon_chain/sync/sync_protocol.nim
index 898172729..26c25e58d 100644
--- a/beacon_chain/sync/sync_protocol.nim
+++ b/beacon_chain/sync/sync_protocol.nim
@@ -466,7 +466,7 @@ p2pProtocol BeaconSync(version = 1,
 
     debug "LC updates by range request done", peer, startPeriod, count, found
 
-  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-alpha.0/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
+  # https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.0/specs/altair/light-client/p2p-interface.md#getlightclientfinalityupdate
   proc lightClientFinalityUpdate(
       peer: Peer,
       response: SingleChunkResponse[altair.LightClientFinalityUpdate])
diff --git a/docs/attestation_flow.md b/docs/attestation_flow.md
index 5faca3dc3..6ce7aac69 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/v1.3.0-rc.0/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof
-  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.2.0-rc.2/specs/phase0/p2p-interface.md#beacon_attestation_subnet_id
+  - Unaggregated: https://github.com/ethereum/consensus-specs/blob/v1.3.0-rc.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.0/specs/phase0/beacon-chain.md#attestations