diff --git a/composer.json b/composer.json
index ddb6cac..785a462 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "friendsofphp/php-cs-fixer": "^3.61.1"
     },
     "require-dev": {
-        "phpstan/phpstan": "^1.11.8",
+        "phpstan/phpstan": "^1.11.9",
         "phpstan/phpstan-phpunit": "^1.4.0",
         "phpunit/phpunit": "^11.2.9"
     },