diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6da0a1f4..d78e3c4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ 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
+
+## [0.5.0] - 2020-08-24
 ### Added 
 - [#52](https://github.com/aeon-php/calendar/pull/52) - **Add psalm-pure for static factory methods** - [@tomaszhanc](https://github.com/tomaszhanc)