diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa850f2..c5c5723 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,16 +6,16 @@ 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).
 
-## 3.1.1 - TBD
+## 3.1.1 - 2018-12-07
 
-[Full Changelog](https://github.com/netzmacht/contao-leaflet-maps/compare/3.1.0...hotfix/3.1.1)
+[Full Changelog](https://github.com/netzmacht/contao-leaflet-maps/compare/3.1.0...3.1.1)
 
 ### Fixed
 
- - Fix missing marker cluster icon
- - Ignore markers without coordinates 
+ - Fix missing marker cluster icon.
+ - Ignore markers without coordinates to prevent uncaught exception caused by invalid coordinates.
 
-## 3.1.0 - 2018-01-11
+## 3.1.0 - 2018-11-01
 
 [Full Changelog](https://github.com/netzmacht/contao-leaflet-maps/compare/3.0.4...3.1.0)