diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a47bbff73a1a..1754d6ff01659 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Update previous release bwc version to 2.4.0 ([#4455](https://github.com/opensearch-project/OpenSearch/pull/4455))
 - 2.3.0 release notes ([#4457](https://github.com/opensearch-project/OpenSearch/pull/4457))
 - Added missing javadocs for `:distribution:tools` modules ([#4483](https://github.com/opensearch-project/OpenSearch/pull/4483))
+- Add BWC version 2.3.1 ([#4513](https://github.com/opensearch-project/OpenSearch/pull/4513))
+
 ### Dependencies
 - Bumps `reactive-streams` from 1.0.3 to 1.0.4