diff --git a/composer.json b/composer.json
index 37b2f46..35d9ffa 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     "homepage": "https://github.com/sparors/laravel-ussd",
     "keywords": ["Laravel", "Ussd"],
     "require": {
-        "illuminate/support": "~5|~6|~7"
+        "illuminate/support": "~5|~6|~7|~8"
     },
     "require-dev": {
         "phpunit/phpunit": "^8.0",