diff --git a/composer.json b/composer.json
index 2c1add9..4818ccc 100644
--- a/composer.json
+++ b/composer.json
@@ -9,6 +9,9 @@
 	"config": {
 		"platform": {
 			"php": "7.2"
+		},
+		"allow-plugins": {
+			"dealerdirect/phpcodesniffer-composer-installer": true
 		}
 	},
 	"repositories": [