diff --git a/composer.json b/composer.json
index a5a6aa1..d48d520 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
     "require-dev": {
         "mikey179/vfsstream": "~1.6",
         "phpmd/phpmd": "@stable",
-        "phpstan/phpstan": "^1.8",
+        "phpstan/phpstan": "^2.1",
         "phpunit/phpunit": "^9.5",
         "platine-php/dev": "^1.0",
         "squizlabs/php_codesniffer": "3.*"