diff --git a/composer.lock b/composer.lock
index 70020a7..295207a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,28 +1,28 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "hash": "ec9a1474cc6bc44287f209ae972a9715",
+    "content-hash": "c684d16f3d960258d0f85a15f717de19",
     "packages": [
         {
             "name": "guzzlehttp/guzzle",
-            "version": "4.1.7",
+            "version": "4.2.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "448f2c2076cf0fb756230611491c4f7ecb735a29"
+                "reference": "13a8e5acff26b0a87d353042170b48976da004a1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/448f2c2076cf0fb756230611491c4f7ecb735a29",
-                "reference": "448f2c2076cf0fb756230611491c4f7ecb735a29",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/13a8e5acff26b0a87d353042170b48976da004a1",
+                "reference": "13a8e5acff26b0a87d353042170b48976da004a1",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
-                "guzzlehttp/streams": "~1.4",
+                "guzzlehttp/streams": "~2.1",
                 "php": ">=5.4.0"
             },
             "require-dev": {
@@ -36,16 +36,16 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.1-dev"
+                    "dev-master": "4.2-dev"
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "GuzzleHttp\\": "src/"
-                },
                 "files": [
                     "src/functions.php"
-                ]
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\": "src/"
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -69,20 +69,20 @@
                 "rest",
                 "web service"
             ],
-            "time": "2014-08-08 01:30:43"
+            "time": "2016-07-15T17:44:18+00:00"
         },
         {
             "name": "guzzlehttp/streams",
-            "version": "1.5.1",
+            "version": "2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/streams.git",
-                "reference": "fb0d1ee29987c2bdc59867bffaade6fc88c2675f"
+                "reference": "f91b721d73f0e561410903b3b3c90a5d0e40b534"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/streams/zipball/fb0d1ee29987c2bdc59867bffaade6fc88c2675f",
-                "reference": "fb0d1ee29987c2bdc59867bffaade6fc88c2675f",
+                "url": "https://api.github.com/repos/guzzle/streams/zipball/f91b721d73f0e561410903b3b3c90a5d0e40b534",
+                "reference": "f91b721d73f0e561410903b3b3c90a5d0e40b534",
                 "shasum": ""
             },
             "require": {
@@ -94,7 +94,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -122,7 +122,8 @@
                 "Guzzle",
                 "stream"
             ],
-            "time": "2014-08-10 23:57:01"
+            "abandoned": true,
+            "time": "2014-08-17T21:15:53+00:00"
         },
         {
             "name": "twilio/sdk",
@@ -175,7 +176,7 @@
                 "source": "https://github.com/twilio/twilio-php/tree/master",
                 "issues": "https://github.com/twilio/twilio-php/issues"
             },
-            "time": "2014-07-15 17:50:20"
+            "time": "2014-07-15T17:50:20+00:00"
         }
     ],
     "packages-dev": [
@@ -221,21 +222,19 @@
                 "nginx",
                 "php"
             ],
-            "time": "2014-08-07 21:25:54"
+            "time": "2014-08-07T21:25:54+00:00"
         }
     ],
-    "aliases": [
-
-    ],
+    "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": {
         "twilio/sdk": 20
     },
     "prefer-stable": false,
+    "prefer-lowest": false,
     "platform": {
         "php": ">=5.3.8"
     },
-    "platform-dev": [
-
-    ]
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }