diff --git a/composer.json b/composer.json
index cf87b345b..e43b0d03f 100644
--- a/composer.json
+++ b/composer.json
@@ -62,7 +62,7 @@
         "nyholm/psr7": "^1.3",
         "nyholm/psr7-server": "^0.4.1",
         "phpspec/prophecy": "^1.10",
-        "phpstan/phpstan": "^0.12.26",
+        "phpstan/phpstan": "^0.12.27",
         "phpunit/phpunit": "^8.5",
         "slim/http": "^1.0",
         "slim/psr7": "^1.1",