diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8399fe2..ba141bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,13 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [2.2.0] - 2018-07-13
 ### Added
 - New `ArrayTools` class helper
 - `ArrayTools::removeValue` method to remove a value from given array
 
-## [2.1.0] - 2017-04-23
+## [2.1.0] - 2018-04-23
 ### Added
 - New `DateTimeComparator` class helper