diff --git a/composer.json b/composer.json
index 355e33c..770a8af 100644
--- a/composer.json
+++ b/composer.json
@@ -41,7 +41,7 @@
         "laminas/laminas-eventmanager": "^3.6.0",
         "laminas/laminas-hydrator": "^4.7",
         "laminas/laminas-servicemanager": "^3.19.0",
-        "phpunit/phpunit": "^9.5.25",
+        "phpunit/phpunit": "^12.0.0",
         "psalm/plugin-phpunit": "^0.19.2",
         "vimeo/psalm": "^6.8.8"
     },