diff --git a/composer.json b/composer.json
index ffcc712..951a56f 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     },
     "require-dev": {
         "phpstan/phpstan": "2.1.29",
-        "phpunit/phpunit": "12.3.15",
+        "phpunit/phpunit": "12.4.1",
         "friendsofphp/php-cs-fixer": "3.88.2"
     },
     "autoload": {