diff --git a/composer.json b/composer.json
index 957315e..73c3a86 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,7 @@
 		"helmich/typo3-typoscript-lint": "^3.1.1",
 		"icanhazstring/composer-unused": "^0.8.11",
 		"php-coveralls/php-coveralls": "^2.7.0",
-		"phpcompatibility/php-compatibility": "^9.3",
+		"phpcompatibility/php-compatibility": "^9.3.5",
 		"phpstan/extension-installer": "^1.4.1",
 		"phpstan/phpstan": "^1.11.8",
 		"phpstan/phpstan-phpunit": "^1.4.0",