diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b86a9c..7149022 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ 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).
 
-## [2.2.1] - Unreleased
+## [2.2.1] - 2022-08-17
 ### Fixed
 - Changed `ac` for `t_secondary` as the fitting parameter for time of eclipses.