diff --git a/composer.lock b/composer.lock
index 1fa202e4a..ea2508dc8 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2127,12 +2127,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "859befb5b0d96246558594b20a929ecff8a918c9"
+                "reference": "56bf6c1cc3e1b24691f10a09321516d4790cecbd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/859befb5b0d96246558594b20a929ecff8a918c9",
-                "reference": "859befb5b0d96246558594b20a929ecff8a918c9",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/56bf6c1cc3e1b24691f10a09321516d4790cecbd",
+                "reference": "56bf6c1cc3e1b24691f10a09321516d4790cecbd",
                 "shasum": ""
             },
             "require": {
@@ -2184,7 +2184,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2017-05-03 23:32:45"
+            "time": "2017-05-04 23:22:10"
         },
         {
             "name": "guzzlehttp/promises",