diff --git a/CHANGELOG.md b/CHANGELOG.md
index 89bf575..72f75f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to `eiipm` are documented here.
 This changelog follows the [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) format,
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
-## [0.4.0] - [UNRELEASED]
+## [0.4.0] - 2025-09-07
 
 ### Added