diff --git a/composer.json b/composer.json
index b1cb379..61a68ff 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         "donatj/drop": "^1.1",
         "phpunit/phpunit": "^9.6",
         "donatj/mddoc": "^0.10.1",
-        "squizlabs/php_codesniffer": "^3.8",
+        "squizlabs/php_codesniffer": "^3.9",
         "corpus/coding-standard": "^0.8.0",
         "friendsofphp/php-cs-fixer": "^3.52",
         "rawr/phpunit-data-provider": "^3.3",