diff --git a/composer.json b/composer.json
index 28a57ff..1a5e77e 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     ],
     "require": {
         "php": "^7.3 || ^8.0",
-        "phpunit/phpunit": "^9.3 || ^10.0 || ^11.5 || ^12.4",
+        "phpunit/phpunit": "^9.3 || ^10.0 || ^11.5 || ^12.4 || ^13.0",
         "psr/http-message": "^1.0 || ^2.0"
     },
     "require-dev": {