diff --git a/composer.lock b/composer.lock
index c264120aa09c..c32cb022000b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "d5c7898d0bf07245cb7362d1a832a3ff",
-    "content-hash": "cee3e7c4a174093fef865ee534eddf29",
+    "hash": "1190e9dc038f1318a7cb1106c37bf7d5",
+    "content-hash": "51b33e873dc102cabd7112211f72b6e4",
     "packages": [
         {
             "name": "braintree/braintree_php",
@@ -2961,6 +2961,68 @@
             ],
             "time": "2017-05-17 16:03:26"
         },
+        {
+            "name": "zendframework/zend-mail",
+            "version": "2.8.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-mail.git",
+                "reference": "248230940ab1453b2a532a8fde76c5a6470d7aad"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-mail/zipball/248230940ab1453b2a532a8fde76c5a6470d7aad",
+                "reference": "248230940ab1453b2a532a8fde76c5a6470d7aad",
+                "shasum": ""
+            },
+            "require": {
+                "ext-iconv": "*",
+                "php": "^7.0 || ^5.6",
+                "zendframework/zend-loader": "^2.5",
+                "zendframework/zend-mime": "^2.5",
+                "zendframework/zend-stdlib": "^2.7 || ^3.0",
+                "zendframework/zend-validator": "^2.6"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^6.0.8 || ^5.7.15",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-config": "^2.6",
+                "zendframework/zend-crypt": "^2.6",
+                "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3"
+            },
+            "suggest": {
+                "ext-intl": "Handle IDN in AddressList hostnames",
+                "zendframework/zend-crypt": "Crammd5 support in SMTP Auth",
+                "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3 when using SMTP to deliver messages"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.8-dev",
+                    "dev-develop": "2.9-dev"
+                },
+                "zf": {
+                    "component": "Zend\\Mail",
+                    "config-provider": "Zend\\Mail\\ConfigProvider"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Mail\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "description": "provides generalized functionality to compose and send both text and MIME-compliant multipart e-mail messages",
+            "homepage": "https://github.com/zendframework/zend-mail",
+            "keywords": [
+                "mail",
+                "zf2"
+            ],
+            "time": "2017-06-08 20:03:58"
+        },
         {
             "name": "zendframework/zend-math",
             "version": "2.7.0",
@@ -3011,6 +3073,55 @@
             ],
             "time": "2016-04-07 16:29:53"
         },
+        {
+            "name": "zendframework/zend-mime",
+            "version": "2.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/zendframework/zend-mime.git",
+                "reference": "9e53a97a3c190d45cc5d584daaaf487d509a9285"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/zendframework/zend-mime/zipball/9e53a97a3c190d45cc5d584daaaf487d509a9285",
+                "reference": "9e53a97a3c190d45cc5d584daaaf487d509a9285",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.5 || ^7.0",
+                "zendframework/zend-stdlib": "^2.7 || ^3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.7 || ^5.7",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-mail": "^2.6"
+            },
+            "suggest": {
+                "zendframework/zend-mail": "Zend\\Mail component"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.6-dev",
+                    "dev-develop": "2.7-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Zend\\Mime\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "homepage": "https://github.com/zendframework/zend-mime",
+            "keywords": [
+                "mime",
+                "zf2"
+            ],
+            "time": "2017-01-16 16:43:38"
+        },
         {
             "name": "zendframework/zend-modulemanager",
             "version": "2.8.0",
@@ -6116,7 +6227,7 @@
         }
     ],
     "aliases": [],
-    "minimum-stability": "RC",
+    "minimum-stability": "stable",
     "stability-flags": {
         "phpmd/phpmd": 0
     },