diff --git a/composer.json b/composer.json
index e517daa..0e82489 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "yii2mod/yii2-comments": "*"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "~1.7"
+        "friendsofphp/php-cs-fixer": "~2.0"
     },
     "autoload": {
         "psr-4": {