diff --git a/composer.json b/composer.json
index 958c9e4..de81f90 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     },
     "require-dev": {
         "laminas/laminas-coding-standard": "^3.1",
-        "phpunit/phpunit": "^12.5.8",
+        "phpunit/phpunit": "^13.0.0",
         "psalm/plugin-phpunit": "^0.19.5",
         "vimeo/psalm": "^6.13"
     },