diff --git a/composer.json b/composer.json
index 3f87909..42b0754 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         }
     },
     "require-dev": {
-        "phpstan/phpstan": "^1.9",
+        "phpstan/phpstan": "^2.0",
         "vimeo/psalm": "^5.24"
     },
     "suggest": {