diff --git a/composer.json b/composer.json
index ab573f9..cc52a24 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
         "phpunit/phpunit": "^10 || ^11",
         "rector/rector": "^2.0",
         "simplesamlphp/simplesamlphp-test-framework": "^1",
-        "squizlabs/php_codesniffer": "^3"
+        "squizlabs/php_codesniffer": "^3 || ^4"
     },
     "conflict": {
         "rector/rector": "2.3.0"