diff --git a/composer.json b/composer.json
index 9967d93..e768fea 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "doctrine/orm": ">=2.2,<=2.4"
     },
     "require-dev": {
-        "twig/twig": "1.9.*"
+        "twig/twig": "1.36.*"
     },
     "minimum-stability": "dev",
     "autoload": {
diff --git a/composer.lock b/composer.lock
index 66e4b1f..ab9c4c0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,9 +1,10 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://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": "5703d1e899af3be57fe46bf4da411b51",
+    "content-hash": "bdf74c3a2e009068fb252928dd3d8cb0",
     "packages": [
         {
             "name": "doctrine/common",
@@ -66,7 +67,7 @@
                 "persistence",
                 "spl"
             ],
-            "time": "2012-08-29 04:04:14"
+            "time": "2012-08-29T04:04:14+00:00"
         },
         {
             "name": "doctrine/dbal",
@@ -124,7 +125,7 @@
                 "persistence",
                 "queryobject"
             ],
-            "time": "2012-11-25 18:06:51"
+            "time": "2012-11-25T18:06:51+00:00"
         },
         {
             "name": "doctrine/doctrine-bundle",
@@ -194,7 +195,7 @@
                 "orm",
                 "persistence"
             ],
-            "time": "2013-05-04 07:57:29"
+            "time": "2013-05-04T07:57:29+00:00"
         },
         {
             "name": "doctrine/orm",
@@ -252,7 +253,7 @@
                 "database",
                 "orm"
             ],
-            "time": "2012-11-21 13:49:23"
+            "time": "2012-11-21T13:49:23+00:00"
         },
         {
             "name": "jdorn/sql-formatter",
@@ -302,7 +303,7 @@
                 "highlight",
                 "sql"
             ],
-            "time": "2013-04-26 18:42:52"
+            "time": "2013-04-26T18:42:52+00:00"
         },
         {
             "name": "psr/log",
@@ -340,7 +341,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2012-12-21 11:40:51"
+            "time": "2012-12-21T11:40:51+00:00"
         },
         {
             "name": "symfony/config",
@@ -388,7 +389,7 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "http://symfony.com",
-            "time": "2013-04-22 04:31:56"
+            "time": "2013-04-22T04:31:56+00:00"
         },
         {
             "name": "symfony/debug",
@@ -444,7 +445,7 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-01 17:15:41"
+            "time": "2013-05-01T17:15:41+00:00"
         },
         {
             "name": "symfony/dependency-injection",
@@ -500,7 +501,7 @@
             ],
             "description": "Symfony DependencyInjection Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-06 08:44:35"
+            "time": "2013-05-06T08:44:35+00:00"
         },
         {
             "name": "symfony/doctrine-bridge",
@@ -566,7 +567,7 @@
             ],
             "description": "Symfony Doctrine Bridge",
             "homepage": "http://symfony.com",
-            "time": "2013-05-06 20:03:44"
+            "time": "2013-05-06T20:03:44+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
@@ -620,7 +621,7 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "http://symfony.com",
-            "time": "2013-02-11 11:27:01"
+            "time": "2013-02-11T11:27:01+00:00"
         },
         {
             "name": "symfony/filesystem",
@@ -667,7 +668,7 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-06 20:03:44"
+            "time": "2013-05-06T20:03:44+00:00"
         },
         {
             "name": "symfony/framework-bundle",
@@ -734,7 +735,7 @@
             ],
             "description": "Symfony FrameworkBundle",
             "homepage": "http://symfony.com",
-            "time": "2013-05-03 06:38:36"
+            "time": "2013-05-03T06:38:36+00:00"
         },
         {
             "name": "symfony/http-foundation",
@@ -784,7 +785,7 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-06 08:11:45"
+            "time": "2013-05-06T08:11:45+00:00"
         },
         {
             "name": "symfony/http-kernel",
@@ -854,7 +855,7 @@
             ],
             "description": "Symfony HttpKernel Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-06 20:03:44"
+            "time": "2013-05-06T20:03:44+00:00"
         },
         {
             "name": "symfony/routing",
@@ -912,7 +913,7 @@
             ],
             "description": "Symfony Routing Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-05 17:11:25"
+            "time": "2013-05-05T17:11:25+00:00"
         },
         {
             "name": "symfony/stopwatch",
@@ -959,7 +960,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "http://symfony.com",
-            "time": "2013-04-17 07:17:10"
+            "time": "2013-04-17T07:17:10+00:00"
         },
         {
             "name": "symfony/templating",
@@ -1006,7 +1007,7 @@
             ],
             "description": "Symfony Templating Component",
             "homepage": "http://symfony.com",
-            "time": "2013-04-17 05:31:37"
+            "time": "2013-04-17T05:31:37+00:00"
         },
         {
             "name": "symfony/translation",
@@ -1061,71 +1062,169 @@
             ],
             "description": "Symfony Translation Component",
             "homepage": "http://symfony.com",
-            "time": "2013-05-05 17:11:25"
+            "time": "2013-05-05T17:11:25+00:00"
         }
     ],
     "packages-dev": [
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.19.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "reference": "aed596913b70fae57be53d86faa2e9ef85a2297b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.19-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.19.0"
+            },
+            "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": "2020-10-23T09:01:57+00:00"
+        },
         {
             "name": "twig/twig",
-            "version": "v1.9.2",
+            "version": "v1.36.0",
             "source": {
                 "type": "git",
-                "url": "git://github.com/fabpot/Twig.git",
-                "reference": "v1.9.2"
+                "url": "https://github.com/twigphp/Twig.git",
+                "reference": "730c9c4471b5152d23061feb02b03382264c8a15"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://github.com/fabpot/Twig/zipball/v1.9.2",
-                "reference": "v1.9.2",
+                "url": "https://api.github.com/repos/twigphp/Twig/zipball/730c9c4471b5152d23061feb02b03382264c8a15",
+                "reference": "730c9c4471b5152d23061feb02b03382264c8a15",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.2.4"
+                "php": ">=5.3.3",
+                "symfony/polyfill-ctype": "^1.8"
+            },
+            "require-dev": {
+                "psr/container": "^1.0",
+                "symfony/debug": "^2.7",
+                "symfony/phpunit-bridge": "^3.4.19|^4.1.8"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.9-dev"
+                    "dev-master": "1.36-dev"
                 }
             },
             "autoload": {
                 "psr-0": {
                     "Twig_": "lib/"
+                },
+                "psr-4": {
+                    "Twig\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "BSD-3"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
                     "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
+                    "email": "fabien@symfony.com",
+                    "homepage": "http://fabien.potencier.org",
+                    "role": "Lead Developer"
                 },
                 {
                     "name": "Armin Ronacher",
-                    "email": "armin.ronacher@active-4.com"
+                    "email": "armin.ronacher@active-4.com",
+                    "role": "Project Founder"
+                },
+                {
+                    "name": "Twig Team",
+                    "homepage": "https://twig.symfony.com/contributors",
+                    "role": "Contributors"
                 }
             ],
             "description": "Twig, the flexible, fast, and secure template language for PHP",
-            "homepage": "http://twig.sensiolabs.org",
+            "homepage": "https://twig.symfony.com",
             "keywords": [
                 "templating"
             ],
-            "time": "2012-08-25 10:32:57"
+            "support": {
+                "forum": "https://groups.google.com/forum/#!forum/twig-users",
+                "issues": "https://github.com/twigphp/Twig/issues",
+                "source": "https://github.com/twigphp/Twig/tree/1.x"
+            },
+            "time": "2018-12-16T10:34:11+00:00"
         }
     ],
-    "aliases": [
-
-    ],
+    "aliases": [],
     "minimum-stability": "dev",
-    "stability-flags": [
-
-    ],
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
     "platform": {
         "php": ">=5.3.3"
     },
-    "platform-dev": [
-
-    ]
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
 }