diff --git a/composer.json b/composer.json
index ac2aad82..29f069d6 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "doctrine/annotations": "^2.0.1",
         "laminas/laminas-coding-standard": "^3.0.0",
         "laminas/laminas-stdlib": "^3.18.0",
-        "phpunit/phpunit": "^10.5.37",
+        "phpunit/phpunit": "^12.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.15.0"
     },