diff --git a/composer.json b/composer.json
index 89694fca9..9b21acce3 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
       "adhocore/json-comment": "^0.1.0"
    },
    "require-dev": {
-      "phpstan/phpstan": "^0.12.8",
+      "phpstan/phpstan": "^0.12.9",
       "irstea/phpunit-shim": "^8.5",
       "phpstan/phpstan-phpunit": "^0.12.6",
       "phpstan/phpstan-strict-rules": "^0.12.2"
diff --git a/composer.lock b/composer.lock
index 6b9ed7cdd..41e2834c3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "3bc1131c6ecd44aef9d1043f49563a6a",
+    "content-hash": "e22866a7924c444da73ff31b831b30cb",
     "packages": [
         {
             "name": "adhocore/json-comment",