diff --git a/composer.lock b/composer.lock
index 29e68fee8..f43817e7a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -92,21 +92,21 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.2.2",
+            "version": "6.2.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "ebf29dee597f02f09f4d5bbecc68230ea9b08f60"
+                "reference": "8d6c6cc55186db87b7dc5009827429ba4e9dc006"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/ebf29dee597f02f09f4d5bbecc68230ea9b08f60",
-                "reference": "ebf29dee597f02f09f4d5bbecc68230ea9b08f60",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/8d6c6cc55186db87b7dc5009827429ba4e9dc006",
+                "reference": "8d6c6cc55186db87b7dc5009827429ba4e9dc006",
                 "shasum": ""
             },
             "require": {
                 "guzzlehttp/promises": "^1.0",
-                "guzzlehttp/psr7": "^1.3.1",
+                "guzzlehttp/psr7": "^1.4",
                 "php": ">=5.5"
             },
             "require-dev": {
@@ -150,7 +150,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2016-10-08T15:01:37+00:00"
+            "time": "2017-02-28T22:50:30+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -205,16 +205,16 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.4.0",
+            "version": "1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "04a6d1a00ea5da0727ee94309a9f0d3dbaecb569"
+                "reference": "0d6c7ca039329247e4f0f8f8f6506810e8248855"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/04a6d1a00ea5da0727ee94309a9f0d3dbaecb569",
-                "reference": "04a6d1a00ea5da0727ee94309a9f0d3dbaecb569",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/0d6c7ca039329247e4f0f8f8f6506810e8248855",
+                "reference": "0d6c7ca039329247e4f0f8f8f6506810e8248855",
                 "shasum": ""
             },
             "require": {
@@ -266,7 +266,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2017-02-21T01:20:32+00:00"
+            "time": "2017-02-27T10:51:17+00:00"
         },
         {
             "name": "monolog/monolog",