diff --git a/composer.json b/composer.json
index ae785a5..a411ed7 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
     },
     "require-dev": {
         "phpstan/phpstan": "^2.1.22",
-        "phpunit/phpunit": "^12.0",
+        "phpunit/phpunit": "^12.0 || ^13.0",
         "squizlabs/php_codesniffer": "^3.13 || ^4.0"
     },
     "config": {