diff --git a/CHANGELOG.md b/CHANGELOG.md
index df0e3767..f1a4d140 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Document modified
 - `README.md` modified
 - Test system modified
+- `Python 3.12` added to `test.yml`
 ## [4.0] - 2023-06-07
 ### Added
 - `pycmMultiLabelError` class