diff --git a/composer.json b/composer.json
index a0a0597..c635dbc 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
 		"helmich/typo3-typoscript-lint": "^3.1.0",
 		"php-coveralls/php-coveralls": "^2.5.3",
 		"phpstan/extension-installer": "^1.3.1",
-		"phpstan/phpstan": "^1.10.20",
+		"phpstan/phpstan": "^1.10.21",
 		"phpstan/phpstan-phpunit": "^1.3.13",
 		"phpstan/phpstan-strict-rules": "^1.5.1",
 		"phpunit/phpunit": "^9.6.9",