diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c41991a8745df13ec99683d37a6539b3888d72e..5ff189f7c70444a9f568e59a9feff1d594f6be28 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,7 +14,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed ###
 
 * Set PyYAML dependency back to PyYaml>=5.4.1 (from 6.0) for better
-  compatibility with docker-compose)
+  compatibility with docker-compose
+* Use Debian mirrors at Netcup for pipeline tests.
 
 ### Deprecated ###