diff --git a/beacon-chain/core/helpers/BUILD.bazel b/beacon-chain/core/helpers/BUILD.bazel
index 8f9ca1439..4b17ef3ef 100644
--- a/beacon-chain/core/helpers/BUILD.bazel
+++ b/beacon-chain/core/helpers/BUILD.bazel
@@ -68,7 +68,6 @@ go_test(
         "//config/params:go_default_library",
         "//consensus-types/primitives:go_default_library",
         "//container/slice:go_default_library",
-        "//crypto/bls:go_default_library",
         "//crypto/hash:go_default_library",
         "//encoding/bytesutil:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
diff --git a/beacon-chain/core/helpers/attestation.go b/beacon-chain/core/helpers/attestation.go
index 75b826ef3..b55a8799b 100644
--- a/beacon-chain/core/helpers/attestation.go
+++ b/beacon-chain/core/helpers/attestation.go
@@ -8,7 +8,6 @@ import (
 
 	"github.com/prysmaticlabs/prysm/v4/config/params"
 	"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v4/crypto/bls"
 	"github.com/prysmaticlabs/prysm/v4/crypto/hash"
 	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
 	prysmTime "github.com/prysmaticlabs/prysm/v4/time"
@@ -66,25 +65,6 @@ func IsAggregator(committeeCount uint64, slotSig []byte) (bool, error) {
 	return binary.LittleEndian.Uint64(b[:8])%modulo == 0, nil
 }
 
-// AggregateSignature returns the aggregated signature of the input attestations.
-//
-// Spec pseudocode definition:
-//
-//	def get_aggregate_signature(attestations: Sequence[Attestation]) -> BLSSignature:
-//	 signatures = [attestation.signature for attestation in attestations]
-//	 return bls.Aggregate(signatures)
-func AggregateSignature(attestations []*ethpb.Attestation) (bls.Signature, error) {
-	sigs := make([]bls.Signature, len(attestations))
-	var err error
-	for i := 0; i < len(sigs); i++ {
-		sigs[i], err = bls.SignatureFromBytes(attestations[i].Signature)
-		if err != nil {
-			return nil, err
-		}
-	}
-	return bls.AggregateSignatures(sigs), nil
-}
-
 // IsAggregated returns true if the attestation is an aggregated attestation,
 // false otherwise.
 func IsAggregated(attestation *ethpb.Attestation) bool {
diff --git a/beacon-chain/core/helpers/attestation_test.go b/beacon-chain/core/helpers/attestation_test.go
index 3e0c69373..38173f0f8 100644
--- a/beacon-chain/core/helpers/attestation_test.go
+++ b/beacon-chain/core/helpers/attestation_test.go
@@ -10,8 +10,6 @@ import (
 	state_native "github.com/prysmaticlabs/prysm/v4/beacon-chain/state/state-native"
 	"github.com/prysmaticlabs/prysm/v4/config/params"
 	"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v4/crypto/bls"
-	"github.com/prysmaticlabs/prysm/v4/encoding/bytesutil"
 	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v4/testing/assert"
 	"github.com/prysmaticlabs/prysm/v4/testing/require"
@@ -45,44 +43,6 @@ func TestAttestation_IsAggregator(t *testing.T) {
 	})
 }
 
-func TestAttestation_AggregateSignature(t *testing.T) {
-	t.Run("verified", func(t *testing.T) {
-		pubkeys := make([]bls.PublicKey, 0, 100)
-		atts := make([]*ethpb.Attestation, 0, 100)
-		msg := bytesutil.ToBytes32([]byte("hello"))
-		for i := 0; i < 100; i++ {
-			priv, err := bls.RandKey()
-			require.NoError(t, err)
-			pub := priv.PublicKey()
-			sig := priv.Sign(msg[:])
-			pubkeys = append(pubkeys, pub)
-			att := &ethpb.Attestation{Signature: sig.Marshal()}
-			atts = append(atts, att)
-		}
-		aggSig, err := helpers.AggregateSignature(atts)
-		require.NoError(t, err)
-		assert.Equal(t, true, aggSig.FastAggregateVerify(pubkeys, msg), "Signature did not verify")
-	})
-
-	t.Run("not verified", func(t *testing.T) {
-		pubkeys := make([]bls.PublicKey, 0, 100)
-		atts := make([]*ethpb.Attestation, 0, 100)
-		msg := []byte("hello")
-		for i := 0; i < 100; i++ {
-			priv, err := bls.RandKey()
-			require.NoError(t, err)
-			pub := priv.PublicKey()
-			sig := priv.Sign(msg)
-			pubkeys = append(pubkeys, pub)
-			att := &ethpb.Attestation{Signature: sig.Marshal()}
-			atts = append(atts, att)
-		}
-		aggSig, err := helpers.AggregateSignature(atts[0 : len(atts)-2])
-		require.NoError(t, err)
-		assert.Equal(t, false, aggSig.FastAggregateVerify(pubkeys, bytesutil.ToBytes32(msg)), "Signature not suppose to verify")
-	})
-}
-
 func TestAttestation_ComputeSubnetForAttestation(t *testing.T) {
 	// Create 10 committees
 	committeeCount := uint64(10)