diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62f0e9595..0c9ca43d3 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](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Development]
+## [5.1.0] - 2019-08-18
 
 ### Added
 - Added support for setting an application id as a messages callback value in updating a number.