diff --git a/composer.json b/composer.json
index 063bf2f..4c885c3 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
   "require": {
     "php": ">=5.5.0",
     "ext-json": "*",
-    "guzzlehttp/guzzle": "^6.1.1"
+    "guzzlehttp/guzzle": "^7.4.2"
   },
   "autoload": {
     "psr-4": {