diff --git a/composer.json b/composer.json
index 97eb9f6..dfa29a2 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
     "phpunit/phpunit": "^9.5",
     "phpstan/phpstan": "^1.7",
     "phpmd/phpmd": "^2.12",
-    "friendsofphp/php-cs-fixer": "~2.18.2 || ~3.1.0",
+    "friendsofphp/php-cs-fixer": "~2.18.2 || ~3.1.0 || ~3.4.0",
     "nelmio/alice": "~3.8.0 || ~3.9.0",
     "theofidry/alice-data-fixtures": "~1.4.0 || ~1.5.0",
     "symfony/phpunit-bridge": "~4.4.24 || ~6.1.0",