diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1de9ce..35d6e21 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,14 @@ 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).
 
-## [Unreleased](https://git.d3data.de/D3Public/linkmobility-php-client/compare/2.1.0...rel_2.x)
+## [Unreleased](https://git.d3data.de/D3Public/linkmobility-php-client/compare/2.2.0...rel_2.x)
+
+## [2.2.0](https://git.d3data.de/D3Public/linkmobility-php-client/compare/2.1.0...2.2.0) - 2023-06-29
+### Added
+- bump psr/http-message dependency to version 2
+
+### Changed
+- use assertion exception
 
 ## [2.1.0](https://git.d3data.de/D3Public/linkmobility-php-client/compare/2.0.3...2.1.0) - 2023-01-20
 ### Added