diff --git a/composer.lock b/composer.lock
index 6aab11b..fb7d87a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
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         "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"
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+    "content-hash": "b1b28be3c2e5eba2f5dcb67079e91d33",
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@@ -75,16 +75,16 @@
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+            "version": "v1.8.0",
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-                "reference": "b3217d58609e9c8e661cd41357a54d926c4a2a1a",
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             "require": {
@@ -95,8 +95,9 @@
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+                "doctrine/coding-standard": "^4.0",
                 "mongodb/mongodb": "^1.1",
-                "phpunit/phpunit": "^5.7",
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@@ -105,7 +106,7 @@
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@@ -140,12 +141,12 @@
                 }
             ],
             "description": "Caching library offering an object-oriented API for many cache backends",
-            "homepage": "http://www.doctrine-project.org",
+            "homepage": "https://www.doctrine-project.org",
             "keywords": [
                 "cache",
                 "caching"
             ],
-            "time": "2017-08-25T07:02:50+00:00"
+            "time": "2018-08-21T18:01:43+00:00"
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@@ -456,12 +457,12 @@
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                 "url": "https://github.com/jenssegers/php-proxy.git",
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-                "reference": "9954a8cd904a53142ec32f0b39ba4784461c88d4",
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@@ -471,9 +472,9 @@
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-                "mockery/mockery": "^0.9",
-                "phpunit/phpunit": "^4.0|^5.0",
-                "satooshi/php-coveralls": "^0.6"
+                "mockery/mockery": "^1.1",
+                "phpunit/phpunit": "^5.0|^6.0|^7.0",
+                "satooshi/php-coveralls": "^2.0"
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@@ -501,7 +502,7 @@
             "keywords": [
                 "proxy"
             ],
-            "time": "2015-11-02T09:24:44+00:00"
+            "time": "2018-05-12T21:30:07+00:00"
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             "name": "monolog/monolog",
@@ -1081,6 +1082,69 @@
             "homepage": "https://symfony.com",
             "time": "2018-03-19T22:35:49+00:00"
         },
+        {
+            "name": "symfony/event-dispatcher",
+            "version": "v4.1.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/event-dispatcher.git",
+                "reference": "bfb30c2ad377615a463ebbc875eba64a99f6aa3e"
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+                "symfony/config": "~3.4|~4.0",
+                "symfony/dependency-injection": "~3.4|~4.0",
+                "symfony/expression-language": "~3.4|~4.0",
+                "symfony/stopwatch": "~3.4|~4.0"
+            },
+            "suggest": {
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+                "symfony/http-kernel": ""
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+            "type": "library",
+            "extra": {
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+            "autoload": {
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+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony EventDispatcher Component",
+            "homepage": "https://symfony.com",
+            "time": "2018-07-26T09:10:45+00:00"
+        },
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