diff --git a/composer.json b/composer.json
index 138145a..67c0779 100644
--- a/composer.json
+++ b/composer.json
@@ -49,5 +49,10 @@
     "scripts": {
         "test": "phpunit",
         "php-coveralls": "php-coveralls"
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
     }
 }