diff --git a/composer.json b/composer.json
index 2fa24d9..550d6ed 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
         "email": "danny@exploriment.io"
     },
     "require": {
-        "guzzlehttp/guzzle": "^6.3",
+        "guzzlehttp/guzzle": "^6.3|^7.0",
         "tightenco/collect": ">=v5.4.33",
         "php": ">=5.6.4",
         "ext-json": "*",