diff --git a/composer.json b/composer.json
index a7d2203..431877c 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
     }
 },
     "require-dev": {
-        "phpstan/phpstan": "1.3.0",
+        "phpstan/phpstan": "1.11.4",
         "php-coveralls/php-coveralls": "2.5.1"
     }
 }