diff --git a/composer.json b/composer.json
index 7fe048e..8513dca 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "require": {
         "php": "~8.1.0 || ~8.2.0",
         "ext-dom": "*",
-        "phpunit/phpunit": "^9.5.6",
+        "phpunit/phpunit": "^9.5.6 || ^10.0.0",
         "php-soap/engine": "^1.3",
         "php-soap/xml": "^1.4",
         "php-vcr/php-vcr": "^1.6.0",