diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc39a2b9..79cce02a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ 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]
+- Changed the red agent in the data manipulation scenario to randomly choose client 1 or client 2 to start its attack.
 - Changed the data manipulation scenario to include a second green agent on client 1.
 - Refactored actions and observations to be configurable via object name, instead of UUID.
 - Fixed a bug where ACL rules were not resetting on episode reset.