diff --git a/CHANGELOG.md b/CHANGELOG.md
index bdeb5c8ff..88fbd75af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.13.4. [#1721](https://github.com/github/codeql-action/pull/1721)
 
 ## 2.3.6 - 01 Jun 2023