diff --git a/composer.json b/composer.json
index 1561b30..4d074c1 100644
--- a/composer.json
+++ b/composer.json
@@ -21,8 +21,8 @@
     },
     "require": {
         "php": ">=7.0.0",
-        "illuminate/support": "5.5.* || 5.6.* || 5.7.*",
-        "laravel/browser-kit-testing": "2.0.x-dev || ^4.0"
+        "illuminate/support": "5.5.* || 5.6.* || 5.7.* || 5.8.*",
+        "laravel/browser-kit-testing": "2.0.x-dev || ^4.0 || ^5.0"
     },
     "require-dev": {
         "orchestra/testbench": "~3.0"