diff --git a/composer.json b/composer.json
index de8ded6..9514ae6 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
     },
     "require-dev": {
         "laminas/laminas-coding-standard": "~3.0.0",
-        "phpunit/phpunit": "^10.4",
+        "phpunit/phpunit": "^12.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.16"
     },