diff --git a/testing/ef_tests/Makefile b/testing/ef_tests/Makefile
index f568c87cf5a..9d18fa84dca 100644
--- a/testing/ef_tests/Makefile
+++ b/testing/ef_tests/Makefile
@@ -1,4 +1,4 @@
-TESTS_TAG := v1.4.0-alpha.2
+TESTS_TAG := v1.4.0-beta.0
 TESTS = general minimal mainnet
 TARBALLS = $(patsubst %,%-$(TESTS_TAG).tar.gz,$(TESTS))
 
diff --git a/testing/ef_tests/src/cases/operations.rs b/testing/ef_tests/src/cases/operations.rs
index e823f6273ca..eec83b9a28b 100644
--- a/testing/ef_tests/src/cases/operations.rs
+++ b/testing/ef_tests/src/cases/operations.rs
@@ -11,7 +11,7 @@ use state_processing::{
         errors::BlockProcessingError,
         process_block_header, process_execution_payload,
         process_operations::{
-            altair, base, process_attester_slashings, process_bls_to_execution_changes,
+            altair, base, deneb, process_attester_slashings, process_bls_to_execution_changes,
             process_deposits, process_exits, process_proposer_slashings,
         },
         process_sync_aggregate, process_withdrawals, VerifyBlockRoot, VerifySignatures,
@@ -98,13 +98,14 @@ impl<E: EthSpec> Operation<E> for Attestation<E> {
                 &mut ctxt,
                 spec,
             ),
-            BeaconState::Altair(_)
-            | BeaconState::Merge(_)
-            | BeaconState::Capella(_)
-            | BeaconState::Deneb(_) => {
+            BeaconState::Altair(_) | BeaconState::Merge(_) | BeaconState::Capella(_) => {
                 initialize_progressive_balances_cache(state, None, spec)?;
                 altair::process_attestation(state, self, 0, &mut ctxt, VerifySignatures::True, spec)
             }
+            BeaconState::Deneb(_) => {
+                initialize_progressive_balances_cache(state, None, spec)?;
+                deneb::process_attestation(state, self, 0, &mut ctxt, VerifySignatures::True, spec)
+            }
         }
     }
 }