diff --git a/composer.json b/composer.json
index 5fe43cc..85709ef 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
     },
     "require-dev": {
         "laminas/laminas-modulemanager": "^2.18",
-        "phpunit/phpunit": "^11.5",
+        "phpunit/phpunit": "^12.0",
         "laminas/laminas-coding-standard": "^3.1",
         "vimeo/psalm": "^6.13",
         "psalm/plugin-phpunit": "^0.19.0"