diff --git a/composer.json b/composer.json
index 07e2db3..f4e88e9 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.89",
         "phpstan/phpstan": "^2.1",
-        "phpunit/phpunit": "^9.5 || ^10.0",
+        "phpunit/phpunit": "^9.5 || ^10.0 || ^12.0",
         "rector/rector": "^2.2",
         "symfony/expression-language": "^6.4|^7.4|^8.0",
         "symfony/http-kernel": "^6.4|^7.4|^8.0"