diff --git a/composer.json b/composer.json
index 2fb9ed8..36d5623 100644
--- a/composer.json
+++ b/composer.json
@@ -44,7 +44,7 @@
     "require-dev": {
         "laminas/laminas-coding-standard": "~3.0.0",
         "laminas/laminas-servicemanager": "^4.2.0",
-        "phpunit/phpunit": "^10.5.36",
+        "phpunit/phpunit": "^12.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.26.1"
     },