diff --git a/composer.json b/composer.json
index e8ef7d2e..34bfe515 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "ramsey/uuid": "^4.1"
     },
     "require-dev": {
-        "phpstan/phpstan": "1.9.0",
+        "phpstan/phpstan": "1.9.3",
         "phpstan/phpstan-phpunit": "^1.0.0",
         "phpstan/phpstan-strict-rules": "^1.0.0",
         "phpunit/phpunit": "^9.5"