diff --git a/composer.json b/composer.json
index 4cd02c9..98af19c 100644
--- a/composer.json
+++ b/composer.json
@@ -43,6 +43,9 @@
         }
     },
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
     }
 }