diff --git a/composer.json b/composer.json
index a7aac06..cb988a7 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "10.5.63",
-        "phpstan/phpstan": "2.2.3",
+        "phpstan/phpstan": "2.2.9",
         "squizlabs/php_codesniffer": "3.13.6"
     },
     "autoload": {