diff --git a/composer.json b/composer.json
index 56e3ada..8ed9ccd 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "silverstripe/framework": "^4.10",
         "silverstripe/assets": "^1",
         "silverstripe/versioned": "^1",
-        "guzzlehttp/guzzle": "~6.3.0"
+        "guzzlehttp/guzzle": "^6.3 || ^7.0"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3",
@@ -42,4 +42,4 @@
     "extra": [],
     "minimum-stability": "dev",
     "prefer-stable": true
-}
\ No newline at end of file
+}