diff --git a/CHANGELOG.md b/CHANGELOG.md
index 83c91149..b0dead4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Fix reuse of `OpenSearch` using `Urllib3HttpConnection` and `AsyncOpenSearch` after calling `close` ([#639](https://github.com/opensearch-project/opensearch-py/pull/639))
 ### Updated APIs
 - Updated opensearch-py APIs to reflect [opensearch-api-specification@1787056](https://github.com/opensearch-project/opensearch-api-specification/commit/178705681e5fd812ab59ad00cefa04146d03d7ad)
+- Updated opensearch-py APIs to reflect [opensearch-api-specification@1787056](https://github.com/opensearch-project/opensearch-api-specification/commit/178705681e5fd812ab59ad00cefa04146d03d7ad)
 ### Security
 ### Dependencies
 - Bumps `pytest-asyncio` from <=0.21.1 to <=0.23.4