diff --git a/composer.json b/composer.json
index ffb8da1..499e7ae 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
   "require-dev": {
     "phpunit/phpunit": "^11.0",
     "symfony/phpunit-bridge": "^7.4 || ^8.0",
-    "phpstan/phpstan": "^1.11",
+    "phpstan/phpstan": "^2.1",
     "friendsofphp/php-cs-fixer": "^3.60"
   },
   "autoload": {