diff --git a/composer.json b/composer.json
index a85547ac..403c2360 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
         "source": "https://github.com/plivo/plivo-php"
     },
     "require": {
-        "guzzlehttp/guzzle": "^6.0",
+        "guzzlehttp/guzzle": "^6.0 || ^7.0",
         "firebase/php-jwt": "^5.2"
     },
     "autoload": {