diff --git a/composer.lock b/composer.lock
index 9d4e57e..155b9a2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,9 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://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": "b3febc1d6cf183015a0e1c32ae1165a0",
     "content-hash": "3440374f7a5b2f08d074dcbb7de11952",
     "packages": [
         {
@@ -59,7 +58,7 @@
                 "class",
                 "preload"
             ],
-            "time": "2015-11-09 22:51:51"
+            "time": "2015-11-09T22:51:51+00:00"
         },
         {
             "name": "dnoegel/php-xdg-base-dir",
@@ -92,7 +91,7 @@
                 "MIT"
             ],
             "description": "implementation of xdg base directory specification for php",
-            "time": "2014-10-24 07:27:01"
+            "time": "2014-10-24T07:27:01+00:00"
         },
         {
             "name": "doctrine/inflector",
@@ -159,7 +158,7 @@
                 "singularize",
                 "string"
             ],
-            "time": "2015-11-06 14:35:42"
+            "time": "2015-11-06T14:35:42+00:00"
         },
         {
             "name": "jakub-onderka/php-console-color",
@@ -202,7 +201,7 @@
                     "homepage": "http://www.acci.cz"
                 }
             ],
-            "time": "2014-04-08 15:00:19"
+            "time": "2014-04-08T15:00:19+00:00"
         },
         {
             "name": "jakub-onderka/php-console-highlighter",
@@ -246,7 +245,7 @@
                     "homepage": "http://www.acci.cz/"
                 }
             ],
-            "time": "2015-04-20 18:58:01"
+            "time": "2015-04-20T18:58:01+00:00"
         },
         {
             "name": "jeremeamia/SuperClosure",
@@ -304,7 +303,7 @@
                 "serialize",
                 "tokenizer"
             ],
-            "time": "2015-12-05 17:17:57"
+            "time": "2015-12-05T17:17:57+00:00"
         },
         {
             "name": "laravel/framework",
@@ -434,7 +433,7 @@
                 "framework",
                 "laravel"
             ],
-            "time": "2016-08-10 12:23:59"
+            "time": "2016-08-10T12:23:59+00:00"
         },
         {
             "name": "league/flysystem",
@@ -517,7 +516,7 @@
                 "sftp",
                 "storage"
             ],
-            "time": "2016-08-10 08:55:11"
+            "time": "2016-08-10T08:55:11+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -595,7 +594,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2016-07-29 03:23:52"
+            "time": "2016-07-29T03:23:52+00:00"
         },
         {
             "name": "mtdowling/cron-expression",
@@ -639,7 +638,7 @@
                 "cron",
                 "schedule"
             ],
-            "time": "2016-01-26 21:23:30"
+            "time": "2016-01-26T21:23:30+00:00"
         },
         {
             "name": "nesbot/carbon",
@@ -686,7 +685,7 @@
                 "datetime",
                 "time"
             ],
-            "time": "2015-11-04 20:07:17"
+            "time": "2015-11-04T20:07:17+00:00"
         },
         {
             "name": "nikic/php-parser",
@@ -737,7 +736,7 @@
                 "parser",
                 "php"
             ],
-            "time": "2016-04-19 13:41:41"
+            "time": "2016-04-19T13:41:41+00:00"
         },
         {
             "name": "paragonie/random_compat",
@@ -785,7 +784,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2016-03-18 20:34:03"
+            "time": "2016-03-18T20:34:03+00:00"
         },
         {
             "name": "psr/log",
@@ -823,7 +822,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2012-12-21 11:40:51"
+            "time": "2012-12-21T11:40:51+00:00"
         },
         {
             "name": "psy/psysh",
@@ -895,27 +894,28 @@
                 "interactive",
                 "shell"
             ],
-            "time": "2016-03-09 05:03:14"
+            "time": "2016-03-09T05:03:14+00:00"
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v5.4.3",
+            "version": "v5.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "4cc92842069c2bbc1f28daaaf1d2576ec4dfe153"
+                "reference": "181b89f18a90f8925ef805f950d47a7190e9b950"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/4cc92842069c2bbc1f28daaaf1d2576ec4dfe153",
-                "reference": "4cc92842069c2bbc1f28daaaf1d2576ec4dfe153",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/181b89f18a90f8925ef805f950d47a7190e9b950",
+                "reference": "181b89f18a90f8925ef805f950d47a7190e9b950",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
             "require-dev": {
-                "mockery/mockery": "~0.9.1"
+                "mockery/mockery": "~0.9.1",
+                "symfony/phpunit-bridge": "~3.2"
             },
             "type": "library",
             "extra": {
@@ -942,13 +942,18 @@
                 }
             ],
             "description": "Swiftmailer, free feature-rich PHP mailer",
-            "homepage": "http://swiftmailer.org",
+            "homepage": "https://swiftmailer.symfony.com",
             "keywords": [
                 "email",
                 "mail",
                 "mailer"
             ],
-            "time": "2016-07-08 11:51:25"
+            "support": {
+                "issues": "https://github.com/swiftmailer/swiftmailer/issues",
+                "source": "https://github.com/swiftmailer/swiftmailer/tree/v5.4.12"
+            },
+            "abandoned": "symfony/mailer",
+            "time": "2018-07-31T09:26:32+00:00"
         },
         {
             "name": "symfony/console",
@@ -1008,7 +1013,7 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-30 07:22:48"
+            "time": "2016-07-30T07:22:48+00:00"
         },
         {
             "name": "symfony/debug",
@@ -1065,7 +1070,7 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-30 07:22:48"
+            "time": "2016-07-30T07:22:48+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
@@ -1125,7 +1130,7 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-19 10:45:57"
+            "time": "2016-07-19T10:45:57+00:00"
         },
         {
             "name": "symfony/finder",
@@ -1174,7 +1179,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2016-06-29 05:40:00"
+            "time": "2016-06-29T05:40:00+00:00"
         },
         {
             "name": "symfony/http-foundation",
@@ -1227,7 +1232,7 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-17 13:54:30"
+            "time": "2016-07-17T13:54:30+00:00"
         },
         {
             "name": "symfony/http-kernel",
@@ -1309,7 +1314,7 @@
             ],
             "description": "Symfony HttpKernel Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-30 09:10:37"
+            "time": "2016-07-30T09:10:37+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -1368,7 +1373,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-php56",
@@ -1424,7 +1429,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-util",
@@ -1476,7 +1481,7 @@
                 "polyfill",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/process",
@@ -1525,7 +1530,7 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-28 11:13:34"
+            "time": "2016-07-28T11:13:34+00:00"
         },
         {
             "name": "symfony/routing",
@@ -1600,7 +1605,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2016-06-29 05:40:00"
+            "time": "2016-06-29T05:40:00+00:00"
         },
         {
             "name": "symfony/translation",
@@ -1664,7 +1669,7 @@
             ],
             "description": "Symfony Translation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-30 07:22:48"
+            "time": "2016-07-30T07:22:48+00:00"
         },
         {
             "name": "symfony/var-dumper",
@@ -1727,7 +1732,7 @@
                 "debug",
                 "dump"
             ],
-            "time": "2016-07-26 08:03:56"
+            "time": "2016-07-26T08:03:56+00:00"
         },
         {
             "name": "symfony/yaml",
@@ -1776,7 +1781,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-17 14:02:08"
+            "time": "2016-07-17T14:02:08+00:00"
         },
         {
             "name": "vlucas/phpdotenv",
@@ -1826,7 +1831,7 @@
                 "env",
                 "environment"
             ],
-            "time": "2016-06-14 14:14:52"
+            "time": "2016-06-14T14:14:52+00:00"
         }
     ],
     "packages-dev": [],
@@ -1838,5 +1843,6 @@
     "platform": {
         "php": ">=5.4.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
 }