diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0581297..7884c4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## Version 2.1.0
+
+Compatibility: requires minimum Kimai 2.1.0
+
+- Fixed: route mapping type changed to attribute
+
 ## Version 2.0.2
 
 Compatibility: requires minimum Kimai 2.0
diff --git a/README.md b/README.md
index 72d4470..dc63360 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ This plugin is compatible with the following Kimai releases:
 
 | Bundle version | Minimum Kimai version |
 |----------------|-----------------------|
+| 2.1.0          | 2.1.0                 |
 | 2.0 - 2.0.1    | 2.0.0                 |
 | 1.5 - 1.7      | 1.9                   |
 | 1.0 - 1.4      | 1.4                   |
diff --git a/Resources/config/routes.yaml b/Resources/config/routes.yaml
index b7c070f..b62d86d 100644
--- a/Resources/config/routes.yaml
+++ b/Resources/config/routes.yaml
@@ -1,6 +1,6 @@
 controllers:
     resource: '../../Controller/'
-    type: annotation
+    type: attribute
     prefix: /{_locale}
     requirements:
         _locale: '%app_locales%'
diff --git a/composer.json b/composer.json
index 15e0f9c..1fdd71f 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": "2.0.2",
+    "version": "2.1.0",
     "keywords": [
         "kimai",
         "kimai-plugin"
@@ -17,7 +17,7 @@
     ],
     "extra": {
         "kimai": {
-            "require": 20000,
+            "require": 20100,
             "name": "Custom CSS"
         }
     },
@@ -28,7 +28,6 @@
     },
     "config": {
         "allow-plugins": {
-            "composer/package-versions-deprecated": false,
             "symfony/flex": false,
             "symfony/runtime": false
         },