diff --git a/composer.json b/composer.json
index 4249d29..2a8c7f0 100644
--- a/composer.json
+++ b/composer.json
@@ -54,5 +54,10 @@
     "branch-alias": {
       "dev-master": "3.0.x-dev"
     }
+  },
+  "config": {
+    "allow-plugins": {
+      "dealerdirect/phpcodesniffer-composer-installer": true
+    }
   }
 }