diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7a53dd650..5a1e723cb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@
 * [#1484](https://github.com/crypto-org-chain/cronos/pull/1484), [#1487](https://github.com/crypto-org-chain/cronos/pull/1487) Respect gas that is wanted to be returned by the ante handler.
 * [#1488](https://github.com/crypto-org-chain/cronos/pull/1488) Enable optimistic execution.
 * [#1490](https://github.com/crypto-org-chain/cronos/pull/1490) Update cometbft to v0.38.8.
+* [#1491](https://github.com/crypto-org-chain/cronos/pull/1491) Free slice data in HasAtVersion.
 
 ### Bug Fixes
 
diff --git a/versiondb/tsrocksdb/store.go b/versiondb/tsrocksdb/store.go
index 18e98542b5..44f82afb2b 100644
--- a/versiondb/tsrocksdb/store.go
+++ b/versiondb/tsrocksdb/store.go
@@ -108,6 +108,7 @@ func (s Store) HasAtVersion(storeKey string, key []byte, version *int64) (bool,
 	if err != nil {
 		return false, err
 	}
+	defer slice.Free()
 	return slice.Exists(), nil
 }