diff --git a/composer.json b/composer.json
index 87def47..8e4c3ab 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         "doctrine/coding-standard": "^9.0",
         "nyholm/psr7": "^1.6",
         "nyholm/psr7-server": "^1.1",
-        "phpstan/phpstan": "^1.4",
+        "phpstan/phpstan": "^1.12",
         "phpunit/phpunit": "~7.0 || ~9.5",
         "roave/security-advisories": "dev-master",
         "vimeo/psalm": "^4.30"