diff --git a/composer.lock b/composer.lock
index 57bdb91..1a34767 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,7 +1,7 @@
 {
     "_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": "ecbc1f1465e97aa31e006a370d842465",
@@ -61,6 +61,51 @@
             ],
             "time": "2017-01-13T18:26:02+00:00"
         },
+        {
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+            "version": "v9.99.99",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/random_compat.git",
+                "reference": "84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95"
+            },
+            "dist": {
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+                "url": "https://api.github.com/repos/paragonie/random_compat/zipball/84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95",
+                "reference": "84b4dfb120c6f9b4ff7b3685f9b8f1aa365a0c95",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "4.*|5.*",
+                "vimeo/psalm": "^1"
+            },
+            "suggest": {
+                "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com"
+                }
+            ],
+            "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+            "keywords": [
+                "csprng",
+                "polyfill",
+                "pseudorandom",
+                "random"
+            ],
+            "time": "2018-07-02T15:55:56+00:00"
+        },
         {
             "name": "pimple/pimple",
             "version": "v3.0.2",
@@ -228,6 +273,7 @@
             "keywords": [
                 "microframework"
             ],
+            "abandoned": "symfony/flex",
             "time": "2016-08-22T17:50:21+00:00"
         },
         {
@@ -349,29 +395,30 @@
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v3.1.3",
+            "version": "v3.4.45",
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                 "url": "https://github.com/symfony/http-foundation.git",
-                "reference": "399a44b73f6c176de40fb063dcdaa578bcfb94d6"
+                "reference": "2264e389995997d2786c1eeb0a45db8e77dac132"
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-                "reference": "399a44b73f6c176de40fb063dcdaa578bcfb94d6",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/2264e389995997d2786c1eeb0a45db8e77dac132",
+                "reference": "2264e389995997d2786c1eeb0a45db8e77dac132",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5.9",
-                "symfony/polyfill-mbstring": "~1.1"
+                "php": "^5.5.9|>=7.0.8",
+                "symfony/polyfill-mbstring": "~1.1",
+                "symfony/polyfill-php70": "~1.6"
             },
             "require-dev": {
-                "symfony/expression-language": "~2.8|~3.0"
+                "symfony/expression-language": "~2.8|~3.0|~4.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.4-dev"
                 }
             },
             "autoload": {
@@ -398,7 +445,21 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2016-07-17T14:02:08+00:00"
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-09-12T20:41:00+00:00"
         },
         {
             "name": "symfony/http-kernel",
@@ -484,16 +545,16 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.2.0",
+            "version": "v1.18.1",
             "source": {
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                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "dff51f72b0706335131b00a7f49606168c582594"
+                "reference": "a6977d63bf9a0ad4c65cd352709e230876f9904a"
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-                "reference": "dff51f72b0706335131b00a7f49606168c582594",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/a6977d63bf9a0ad4c65cd352709e230876f9904a",
+                "reference": "a6977d63bf9a0ad4c65cd352709e230876f9904a",
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             "require": {
@@ -505,7 +566,11 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2-dev"
+                    "dev-master": "1.18-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
                 }
             },
             "autoload": {
@@ -539,7 +604,98 @@
                 "portable",
                 "shim"
             ],
-            "time": "2016-05-18T14:26:46+00:00"
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-07-14T12:35:20+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php70",
+            "version": "v1.18.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php70.git",
+                "reference": "0dd93f2c578bdc9c72697eaa5f1dd25644e618d3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php70/zipball/0dd93f2c578bdc9c72697eaa5f1dd25644e618d3",
+                "reference": "0dd93f2c578bdc9c72697eaa5f1dd25644e618d3",
+                "shasum": ""
+            },
+            "require": {
+                "paragonie/random_compat": "~1.0|~2.0|~9.99",
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.18-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php70\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.0+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-07-14T12:35:20+00:00"
         },
         {
             "name": "symfony/routing",
@@ -624,5 +780,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "1.1.0"
 }