diff --git a/composer.json b/composer.json
index 2bb8501..7e4be2e 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
     "require-dev": {
         "laminas/laminas-authentication": "^2.2",
         "laminas/laminas-coding-standard": "^3.0",
-        "phpunit/phpunit": "^11.5.44",
+        "phpunit/phpunit": "^12.0.0",
         "phpspec/prophecy-phpunit": "^2.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^6.13.1"