diff --git a/composer.json b/composer.json
index b483d77..7be336f 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "unclecheese/display-logic": "^2"
     },
     "require-dev": {
-        "squizlabs/php_codesniffer": "^3.0",
+        "squizlabs/php_codesniffer": "^4.0",
         "syntro/silverstripe-phpstan": "^1",
         "phpunit/phpunit": "^9.5"
     },