diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf37230..2bc0c60 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,9 +2,13 @@
 All notable changes to this project will be documented in this file based on the [Keep a Changelog](http://keepachangelog.com/) Standard.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased](https://github.com/gbprod/uuid-normalizer/compare/v1.0.1...HEAD)
+## [Unreleased](https://github.com/gbprod/uuid-normalizer/compare/v1.1.0...HEAD)
+
+## [v1.1.0](https://github.com/gbprod/uuid-normalizer/compare/v1.0.1...v1.1.0)
  
  - Symfony 4 compatibility
+ - Add Contributing file
+ - Drop php 5.5 compatibility
 
 ## [v1.0.0](https://github.com/gbprod/uuid-normalizer/compare/v1.0.0...v1.0.1)