diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8abf82aee..321b64b88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 This file is used to list changes made in each version of the jenkins cookbook.
 
-## Unreleased
+## 9.5.21 - *2024-05-02*
 
 ## 9.5.20 - *2024-05-02*