diff --git a/composer.json b/composer.json
index 969044c..2eda3f9 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0",
+        "phpunit/phpunit": "^9.0 || ^10.0",
         "phpstan/phpstan": "^1.9"
     },
     "scripts": {