diff --git a/composer.json b/composer.json
index 1e19146..134c742 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "php-standard-library/type": "^6.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "~12.3",
+        "phpunit/phpunit": "~12.3 || ~13.0",
         "vimeo/psalm": "~6.16.0",
         "php-cs-fixer/shim": "~3.94.0",
         "symfony/cache": "^7.0 || ^6.4"