diff --git a/composer.lock b/composer.lock
index 6aab11b..e871743 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
     "_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"
     ],
-    "content-hash": "649c6c1d9b159d2930679e77711edc3e",
+    "content-hash": "b1b28be3c2e5eba2f5dcb67079e91d33",
     "packages": [
         {
             "name": "blocktrail/cryptojs-aes-php",
@@ -456,12 +456,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/jenssegers/php-proxy.git",
-                "reference": "9954a8cd904a53142ec32f0b39ba4784461c88d4"
+                "reference": "2f723629194a99c5609c1ecea540c1f465e143f8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/jenssegers/php-proxy/zipball/9954a8cd904a53142ec32f0b39ba4784461c88d4",
-                "reference": "9954a8cd904a53142ec32f0b39ba4784461c88d4",
+                "url": "https://api.github.com/repos/jenssegers/php-proxy/zipball/2f723629194a99c5609c1ecea540c1f465e143f8",
+                "reference": "2f723629194a99c5609c1ecea540c1f465e143f8",
                 "shasum": ""
             },
             "require": {
@@ -471,9 +471,9 @@
                 "zendframework/zend-diactoros": "^1.0"
             },
             "require-dev": {
-                "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"
             },
             "type": "library",
             "autoload": {
@@ -501,7 +501,7 @@
             "keywords": [
                 "proxy"
             ],
-            "time": "2015-11-02T09:24:44+00:00"
+            "time": "2018-05-12T21:30:07+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -1081,6 +1081,69 @@
             "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"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/bfb30c2ad377615a463ebbc875eba64a99f6aa3e",
+                "reference": "bfb30c2ad377615a463ebbc875eba64a99f6aa3e",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1.3"
+            },
+            "conflict": {
+                "symfony/dependency-injection": "<3.4"
+            },
+            "require-dev": {
+                "psr/log": "~1.0",
+                "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": {
+                "symfony/dependency-injection": "",
+                "symfony/http-kernel": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.1-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\EventDispatcher\\": ""
+                },
+                "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"
+        },
         {
             "name": "symfony/polyfill-mbstring",
             "version": "v1.7.0",
@@ -1266,16 +1329,16 @@
         },
         {
             "name": "zendframework/zend-diactoros",
-            "version": "1.7.1",
+            "version": "1.8.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-diactoros.git",
-                "reference": "bf26aff803a11c5cc8eb7c4878a702c403ec67f1"
+                "reference": "3e4edb822c942f37ade0d09579cfbab11e2fee87"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-diactoros/zipball/bf26aff803a11c5cc8eb7c4878a702c403ec67f1",
-                "reference": "bf26aff803a11c5cc8eb7c4878a702c403ec67f1",
+                "url": "https://api.github.com/repos/zendframework/zend-diactoros/zipball/3e4edb822c942f37ade0d09579cfbab11e2fee87",
+                "reference": "3e4edb822c942f37ade0d09579cfbab11e2fee87",
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             "require": {
@@ -1288,17 +1351,28 @@
             "require-dev": {
                 "ext-dom": "*",
                 "ext-libxml": "*",
-                "phpunit/phpunit": "^5.7.16 || ^6.0.8",
+                "phpunit/phpunit": "^5.7.16 || ^6.0.8 || ^7.2.7",
                 "zendframework/zend-coding-standard": "~1.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev",
-                    "dev-develop": "1.8.x-dev"
+                    "dev-master": "1.8.x-dev",
+                    "dev-develop": "1.9.x-dev",
+                    "dev-release-2.0": "2.0.x-dev"
                 }
             },
             "autoload": {
+                "files": [
+                    "src/functions/create_uploaded_file.php",
+                    "src/functions/marshal_headers_from_sapi.php",
+                    "src/functions/marshal_method_from_sapi.php",
+                    "src/functions/marshal_protocol_version_from_sapi.php",
+                    "src/functions/marshal_uri_from_sapi.php",
+                    "src/functions/normalize_server.php",
+                    "src/functions/normalize_uploaded_files.php",
+                    "src/functions/parse_cookie_header.php"
+                ],
                 "psr-4": {
                     "Zend\\Diactoros\\": "src/"
                 }
@@ -1314,7 +1388,7 @@
                 "psr",
                 "psr-7"
             ],
-            "time": "2018-02-26T15:44:50+00:00"
+            "time": "2018-08-10T14:16:32+00:00"
         }
     ],
     "packages-dev": [