diff --git a/composer.json b/composer.json
index 9d1628b3..5ccbddbf 100644
--- a/composer.json
+++ b/composer.json
@@ -63,7 +63,7 @@
     "phpunit/phpunit": "^5.7 | ^6.0 | ^7.0 | ^8.0 | ^9.0",
     "phpunit/php-invoker": "*",
     "phpmd/phpmd": "@stable",
-    "squizlabs/php_codesniffer": "3.*@stable",
+    "squizlabs/php_codesniffer": "4.*@stable",
     "corneltek/getoptionkit": "~2"
   },
   "autoload": {