diff --git a/composer.json b/composer.json
index 2f9cfb9..38f1165 100644
--- a/composer.json
+++ b/composer.json
@@ -22,13 +22,13 @@
     ],
     "require": {
         "php": "^7.2",
-        "guzzlehttp/guzzle": "^6.3",
+        "guzzlehttp/guzzle": "^6.3|^7.0.1",
         "illuminate/contracts": "^5.8|^6.0|^7.0|^8.0",
         "illuminate/support": "^5.8|^6.0|^7.0|^8.0"
     },
     "require-dev": {
         "orchestra/testbench": "^3.8|^4.0|^5.0|^6.0",
-        "phpunit/phpunit": "^8.0"
+        "phpunit/phpunit": "^8.0|^9.0"
     },
     "autoload": {
         "psr-4": {