Merge pull request #14 from ziming/patch-1

Author: mbardelmeijer

composer.json

@@ -14,10 +14,10 @@
     "require": {
         "php": "^7.2",
         "ext-simplexml": "*",
-        "guzzlehttp/guzzle": "^6.2",
+        "guzzlehttp/guzzle": "^6.2|^7.0",
         "illuminate/notifications": "~5.8 || ~6.0 || ^7.0 || ^8.0",
         "illuminate/support": "~5.8 || ~6.0 || ^7.0 || ^8.0",
-        "orchestra/testbench": "~3.8.0 || ^4.0 || ^5.0"
+        "orchestra/testbench": "~3.8.0 || ^4.0 || ^5.0 || ^6.0"
     },
     "require-dev": {
         "mockery/mockery": "~1.3.1",