diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1019c2bd51c30..9fc1a3aa01e70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -84,4 +84,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Security
 
-[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.13...2.x
+[Unreleased 2.x]: https://github.com/opensearch-project/OpenSearch/compare/2.15...2.x