diff --git a/composer.json b/composer.json
index 073a8c2..b4da170 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^12.0",
         "nextcloud/coding-standard": "^1.0.0",
         "nextcloud/ocp": "dev-stable25"
     },