diff --git a/composer.json b/composer.json
index cee2054..d6dd2d0 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         }
     ],
     "require": {
-        "php": "^7.4",
+        "php": "^7.4|8.*",
         "ext-ffi": "*"
     },
     "require-dev": {