diff --git a/composer.json b/composer.json
index 109c291..6bf0e91 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         }
     },
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "ext-simplexml": "*"
     },
     "autoload": {