diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7884c4f..1829f87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
-# Changelog
+## Version 2.2.0
+
+Compatibility: requires minimum Kimai 2.17.0
+
+- Code modernization
 
 ## Version 2.1.0
 
diff --git a/composer.json b/composer.json
index cf9bf70..8555e6d 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
     "description": "Edit custom CSS rules through an administration screen.",
     "homepage": "https://www.kimai.org/store/keleo-css-custom-bundle.html",
     "type": "kimai-plugin",
-    "version": "2.1.0",
+    "version": "2.2.0",
     "keywords": [
         "kimai",
         "kimai-plugin"
@@ -17,7 +17,7 @@
     ],
     "extra": {
         "kimai": {
-            "require": 20100,
+            "require": 21700,
             "name": "Custom CSS"
         }
     },