diff --git a/CHANGELOG.md b/CHANGELOG.md
index 328feecccf5f2d112bfeedf6d2875cef086fb840..f05df6619ecf896f5f20d5146c3c5cbf697f461b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,20 @@ All notable changes to this project will be documented in this file.
 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).
 
+## [2.3.1]
+
+### Added
+
+- Municipality geometries for cities (Flensburg, Kiel, Lübeck, and Neumünster) have been incorporated into [sh_bb.csv](./ckanext/odsh/resources/sh_bb.csv).
+
+### Removed
+
+- The flash message for ODaG evaluation has been removed.
+
+### Fixed
+
+- The delete button for packages is now visible again. It was inadvertently missing in a previous update and has been rectified.
+
 ## [2.3.0]
 
 ### Added