diff --git a/composer.json b/composer.json
index 2e56f6d..184ad53 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     "require-dev": {
         "phpunit/phpunit": "^9.5",
         "phpspec/prophecy-phpunit": "^2.0",
-        "phpstan/phpstan": "^0.12.99",
+        "phpstan/phpstan": "^1.2.0",
         "psr/http-factory": "^1.0",
         "squizlabs/php_codesniffer": "^3.6"
     },