diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f81df203..17721cec4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CodeQL Action Changelog
 
-## [UNRELEASED]
+## 2.20.1 - 21 Jun 2023
 
 - Update default CodeQL bundle version to 2.13.4. [#1721](https://github.com/github/codeql-action/pull/1721)
 - Experimental: add a new `resolve-environment` action which attempts to infer a configuration for the build environment that is required to build a given project. Do not use this in production as it is part of an internal experiment and subject to change at any time.