diff --git a/composer.json b/composer.json
index 4382a67..88616fa 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,7 @@
         "laminas/laminas-diactoros": "^2.25.2 || ^3.4.0",
         "laminas/laminas-i18n": "^2.29.0",
         "laminas/laminas-stratigility": "^4.0.2",
-        "phpunit/phpunit": "^10.5.36",
+        "phpunit/phpunit": "^12.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.26.1"
     },