diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f62872..4002638 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ This file is used to list changes made in each version of the etcd cookbook.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## 9.1.31 - *2024-05-22*
 
 Standardise files with files in sous-chefs/repo-management