diff --git a/composer.lock b/composer.lock
index a7a754c..0c717aa 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": "b64b67aafc74aa8832d059434923b483",
     "content-hash": "ecea0d12c5278656576371d4802a67fc",
     "packages": [
         {
@@ -73,7 +72,7 @@
                 "docblock",
                 "parser"
             ],
-            "time": "2015-08-31 12:32:49"
+            "time": "2015-08-31T12:32:49+00:00"
         },
         {
             "name": "doctrine/cache",
@@ -143,7 +142,7 @@
                 "cache",
                 "caching"
             ],
-            "time": "2015-12-31 16:37:02"
+            "time": "2015-12-31T16:37:02+00:00"
         },
         {
             "name": "doctrine/collections",
@@ -209,7 +208,7 @@
                 "collections",
                 "iterator"
             ],
-            "time": "2015-04-14 22:21:58"
+            "time": "2015-04-14T22:21:58+00:00"
         },
         {
             "name": "doctrine/common",
@@ -282,7 +281,7 @@
                 "persistence",
                 "spl"
             ],
-            "time": "2015-12-25 13:18:31"
+            "time": "2015-12-25T13:18:31+00:00"
         },
         {
             "name": "doctrine/dbal",
@@ -353,7 +352,7 @@
                 "persistence",
                 "queryobject"
             ],
-            "time": "2016-01-05 22:11:12"
+            "time": "2016-01-05T22:11:12+00:00"
         },
         {
             "name": "doctrine/doctrine-bundle",
@@ -432,7 +431,7 @@
                 "orm",
                 "persistence"
             ],
-            "time": "2016-01-10 17:21:44"
+            "time": "2016-01-10T17:21:44+00:00"
         },
         {
             "name": "doctrine/doctrine-cache-bundle",
@@ -520,7 +519,7 @@
                 "cache",
                 "caching"
             ],
-            "time": "2016-01-26 17:28:51"
+            "time": "2016-01-26T17:28:51+00:00"
         },
         {
             "name": "doctrine/inflector",
@@ -587,7 +586,7 @@
                 "singularize",
                 "string"
             ],
-            "time": "2015-11-06 14:35:42"
+            "time": "2015-11-06T14:35:42+00:00"
         },
         {
             "name": "doctrine/instantiator",
@@ -641,7 +640,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14 21:17:01"
+            "time": "2015-06-14T21:17:01+00:00"
         },
         {
             "name": "doctrine/lexer",
@@ -695,7 +694,7 @@
                 "lexer",
                 "parser"
             ],
-            "time": "2014-09-09 13:34:57"
+            "time": "2014-09-09T13:34:57+00:00"
         },
         {
             "name": "doctrine/orm",
@@ -771,7 +770,7 @@
                 "database",
                 "orm"
             ],
-            "time": "2016-01-05 21:34:58"
+            "time": "2016-01-05T21:34:58+00:00"
         },
         {
             "name": "incenteev/composer-parameter-handler",
@@ -822,7 +821,7 @@
             "keywords": [
                 "parameters management"
             ],
-            "time": "2015-11-10 17:04:01"
+            "time": "2015-11-10T17:04:01+00:00"
         },
         {
             "name": "ircmaxell/password-compat",
@@ -864,7 +863,7 @@
                 "hashing",
                 "password"
             ],
-            "time": "2014-11-20 16:49:30"
+            "time": "2014-11-20T16:49:30+00:00"
         },
         {
             "name": "jdorn/sql-formatter",
@@ -914,7 +913,7 @@
                 "highlight",
                 "sql"
             ],
-            "time": "2014-01-12 16:20:24"
+            "time": "2014-01-12T16:20:24+00:00"
         },
         {
             "name": "monolog/monolog",
@@ -992,7 +991,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2016-04-12 18:29:35"
+            "time": "2016-04-12T18:29:35+00:00"
         },
         {
             "name": "paragonie/random_compat",
@@ -1040,7 +1039,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2016-04-03 06:00:07"
+            "time": "2016-04-03T06:00:07+00:00"
         },
         {
             "name": "psr/log",
@@ -1078,7 +1077,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2012-12-21 11:40:51"
+            "time": "2012-12-21T11:40:51+00:00"
         },
         {
             "name": "sensio/distribution-bundle",
@@ -1130,7 +1129,7 @@
                 "configuration",
                 "distribution"
             ],
-            "time": "2016-04-25 20:50:31"
+            "time": "2016-04-25T20:50:31+00:00"
         },
         {
             "name": "sensio/framework-extra-bundle",
@@ -1192,7 +1191,7 @@
                 "annotations",
                 "controllers"
             ],
-            "time": "2016-03-25 17:08:27"
+            "time": "2016-03-25T17:08:27+00:00"
         },
         {
             "name": "sensiolabs/security-checker",
@@ -1236,7 +1235,7 @@
                 }
             ],
             "description": "A security checker for your composer.lock",
-            "time": "2015-11-07 08:07:40"
+            "time": "2015-11-07T08:07:40+00:00"
         },
         {
             "name": "swiftmailer/swiftmailer",
@@ -1289,7 +1288,7 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2016-05-01 08:45:47"
+            "time": "2016-05-01T08:45:47+00:00"
         },
         {
             "name": "symfony/monolog-bundle",
@@ -1349,7 +1348,7 @@
                 "log",
                 "logging"
             ],
-            "time": "2016-04-13 16:21:01"
+            "time": "2016-04-13T16:21:01+00:00"
         },
         {
             "name": "symfony/polyfill-apcu",
@@ -1402,7 +1401,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-intl-icu",
@@ -1460,7 +1459,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
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@@ -1519,7 +1518,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
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             "name": "symfony/polyfill-php54",
@@ -1577,7 +1576,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
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             "name": "symfony/polyfill-php55",
@@ -1633,7 +1632,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/polyfill-php56",
@@ -1689,7 +1688,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
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@@ -1748,7 +1747,7 @@
                 "portable",
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-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
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         {
             "name": "symfony/polyfill-util",
@@ -1800,7 +1799,7 @@
                 "polyfill",
                 "shim"
             ],
-            "time": "2016-05-18 14:26:46"
+            "time": "2016-05-18T14:26:46+00:00"
         },
         {
             "name": "symfony/security-acl",
@@ -1861,7 +1860,7 @@
             ],
             "description": "Symfony Security Component - ACL (Access Control List)",
             "homepage": "https://symfony.com",
-            "time": "2015-12-28 09:39:46"
+            "time": "2015-12-28T09:39:46+00:00"
         },
         {
             "name": "symfony/swiftmailer-bundle",
@@ -1918,7 +1917,7 @@
             ],
             "description": "Symfony SwiftmailerBundle",
             "homepage": "http://symfony.com",
-            "time": "2016-01-15 16:41:20"
+            "time": "2016-01-15T16:41:20+00:00"
         },
         {
             "name": "symfony/symfony",
@@ -2052,7 +2051,7 @@
             "keywords": [
                 "framework"
             ],
-            "time": "2016-05-09 21:45:54"
+            "time": "2016-05-09T21:45:54+00:00"
         },
         {
             "name": "twig/twig",
@@ -2113,7 +2112,7 @@
             "keywords": [
                 "templating"
             ],
-            "time": "2016-05-30 09:11:59"
+            "time": "2016-05-30T09:11:59+00:00"
         }
     ],
     "packages-dev": [
@@ -2167,25 +2166,28 @@
                 }
             ],
             "description": "This bundle generates code for you",
-            "time": "2016-02-26 04:36:01"
+            "time": "2016-02-26T04:36:01+00:00"
         },
         {
             "name": "symfony/phpunit-bridge",
-            "version": "v2.8.6",
+            "version": "v2.8.50",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/phpunit-bridge.git",
-                "reference": "9d30940765450ccc58bc39f4bda30cc412101b4b"
+                "reference": "4aa44ecbfb5e2c50797d17756da11c93a8a6974f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/phpunit-bridge/zipball/9d30940765450ccc58bc39f4bda30cc412101b4b",
-                "reference": "9d30940765450ccc58bc39f4bda30cc412101b4b",
+                "url": "https://api.github.com/repos/symfony/phpunit-bridge/zipball/4aa44ecbfb5e2c50797d17756da11c93a8a6974f",
+                "reference": "4aa44ecbfb5e2c50797d17756da11c93a8a6974f",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
+            "conflict": {
+                "phpunit/phpunit": ">=6.0"
+            },
             "suggest": {
                 "symfony/debug": "For tracking deprecated interfaces usages at runtime with DebugClassLoader"
             },
@@ -2222,7 +2224,10 @@
             ],
             "description": "Symfony PHPUnit Bridge",
             "homepage": "https://symfony.com",
-            "time": "2016-04-05 16:36:54"
+            "support": {
+                "source": "https://github.com/symfony/phpunit-bridge/tree/v2.8.50"
+            },
+            "time": "2019-04-16T10:01:26+00:00"
         }
     ],
     "aliases": [],
@@ -2233,5 +2238,6 @@
     "platform": {
         "php": ">=5.3.9"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.1.0"
 }