diff --git a/CHANGELOG.md b/CHANGELOG.md
index c7e4465..616d4f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 
-## Unreleased
+## [1.9.0] - 17.04.2022
 
 ### Infrastructure
 - Update actions/checkout to v3
diff --git a/package-lock.json b/package-lock.json
index 5e42639..f9e5618 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "changelog",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "changelog",
-      "version": "1.8.0",
+      "version": "1.9.0",
       "license": "MIT",
       "dependencies": {
         "@actions/core": "1.10.0",
diff --git a/package.json b/package.json
index 91525a9..3c574bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "changelog",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Detects changes and validates a given changelog",
   "main": "src/index.js",
   "scripts": {