diff --git a/core/header/service_test.go b/core/header/service_test.go
index 7ac590a9fc..552165b1f1 100644
--- a/core/header/service_test.go
+++ b/core/header/service_test.go
@@ -2,6 +2,7 @@ package header
 
 import (
 	"crypto/sha256"
+	"slices"
 	"testing"
 	"time"
 )
@@ -29,7 +30,7 @@ func TestInfo_Bytes(t *testing.T) {
 	if err != nil {
 		t.Errorf("unexpected error: %v", err)
 	}
-	if !bytesEqual(expectedBytes, bytes) {
+	if !slices.Equal(expectedBytes, bytes) {
 		t.Errorf("expected bytes %v, got %v", expectedBytes, bytes)
 	}
 }
@@ -54,28 +55,16 @@ func TestInfo_FromBytes(t *testing.T) {
 	if info.Height != 12345 {
 		t.Errorf("expected Height %d, got %d", 12345, info.Height)
 	}
-	if !bytesEqual([]byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.Hash) {
+	if !slices.Equal([]byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.Hash) {
 		t.Errorf("expected Hash %v, got %v", []byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.Hash)
 	}
 	if info.Time != time.Date(2024, time.January, 1, 0, 0, 0, 0, time.UTC) {
 		t.Errorf("expected Time %v, got %v", time.Date(2024, time.January, 1, 0, 0, 0, 0, time.UTC), info.Time)
 	}
-	if !bytesEqual([]byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.AppHash) {
+	if !slices.Equal([]byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.AppHash) {
 		t.Errorf("expected AppHash %v, got %v", []byte{0x26, 0xb0, 0xb8, 0x3e, 0x72, 0x81, 0xbe, 0x3b, 0x11, 0x76, 0x58, 0xb6, 0xf2, 0x63, 0x6d, 0x3, 0x68, 0xca, 0xd3, 0xd7, 0x4f, 0x22, 0x24, 0x34, 0x28, 0xf5, 0x40, 0x1a, 0x4b, 0x70, 0x89, 0x7e}, info.AppHash)
 	}
 	if info.ChainID != "test-chain" {
 		t.Errorf("expected ChainID %s, got %s", "test-chain", info.ChainID)
 	}
 }
-
-func bytesEqual(a, b []byte) bool {
-	if len(a) != len(b) {
-		return false
-	}
-	for i := range a {
-		if a[i] != b[i] {
-			return false
-		}
-	}
-	return true
-}