更新 composer.json

@@ -11,7 +11,8 @@
     ],
     "require": {
         "php": ">=7.1",
-        "illuminate/support": "^5.8"
+        "illuminate/support": "^5.8",
+        "Illuminate\Foundation": "^5.8"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0"