diff --git a/composer.json b/composer.json
index b79a2fc..b063fb4 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3",
         "php-di/php-di": "^6",
-        "phpstan/phpstan": "^1",
+        "phpstan/phpstan": "^2",
         "phpunit/phpunit": "^6 || ^7",
         "squizlabs/php_codesniffer": "^3"
     },