diff --git a/app/Bootstrap/ViewComposer.php b/app/Bootstrap/ViewComposer.php
index 16ca2d5..bdfd07d 100644
--- a/app/Bootstrap/ViewComposer.php
+++ b/app/Bootstrap/ViewComposer.php
@@ -6,6 +6,7 @@ use DI\Container;
 use PHLAK\Config\Config;
 use Slim\Views\Twig;
 use Twig\Extension\CoreExtension;
+use Twig\Loader\FilesystemLoader;
 use Twig\TwigFunction;
 
 class ViewComposer
@@ -43,7 +44,7 @@ class ViewComposer
      */
     public function __invoke(): void
     {
-        $twig = new Twig('app/resources/views');
+        $twig = new Twig(new FilesystemLoader('app/resources/views'));
 
         $twig->getEnvironment()->setCache(
             $this->config->get('view.cache', 'app/cache/views')
diff --git a/composer.lock b/composer.lock
index c781836..e19e498 100644
--- a/composer.lock
+++ b/composer.lock
@@ -863,22 +863,22 @@
         },
         {
             "name": "slim/slim",
-            "version": "4.3.0",
+            "version": "4.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/slimphp/Slim.git",
-                "reference": "26020e9a099e69b0b12918115894f7106364dcb7"
+                "reference": "207acac048652a35d4762a737d59e317aedc02df"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/slimphp/Slim/zipball/26020e9a099e69b0b12918115894f7106364dcb7",
-                "reference": "26020e9a099e69b0b12918115894f7106364dcb7",
+                "url": "https://api.github.com/repos/slimphp/Slim/zipball/207acac048652a35d4762a737d59e317aedc02df",
+                "reference": "207acac048652a35d4762a737d59e317aedc02df",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
                 "nikic/fast-route": "^1.3",
-                "php": "^7.1",
+                "php": "^7.2",
                 "psr/container": "^1.0",
                 "psr/http-factory": "^1.0",
                 "psr/http-message": "^1.0",
@@ -886,29 +886,30 @@
                 "psr/http-server-middleware": "^1.0"
             },
             "require-dev": {
+                "adriansuter/php-autoload-override": "^1.0",
                 "ext-simplexml": "*",
                 "guzzlehttp/psr7": "^1.5",
                 "http-interop/http-factory-guzzle": "^1.0",
+                "laminas/laminas-diactoros": "^2.1",
                 "nyholm/psr7": "^1.1",
                 "nyholm/psr7-server": "^0.3.0",
-                "phpspec/prophecy": "^1.8",
+                "phpspec/prophecy": "^1.10",
                 "phpstan/phpstan": "^0.11.5",
-                "phpunit/phpunit": "^7.5",
+                "phpunit/phpunit": "^8.5",
                 "slim/http": "^0.7",
                 "slim/psr7": "^0.3",
-                "squizlabs/php_codesniffer": "^3.4.2",
-                "zendframework/zend-diactoros": "^2.1"
+                "squizlabs/php_codesniffer": "^3.5"
             },
             "suggest": {
                 "ext-simplexml": "Needed to support XML format in BodyParsingMiddleware",
                 "ext-xml": "Needed to support XML format in BodyParsingMiddleware",
-                "slim/psr7": "Slim PSR-7 implementation. See http://www.slimframework.com/docs/v4/start/installation.html for more information."
+                "php-di/php-di": "PHP-DI is the recommended container library to be used with Slim",
+                "slim/psr7": "Slim PSR-7 implementation. See https://www.slimframework.com/docs/v4/start/installation.html for more information."
             },
             "type": "library",
             "autoload": {
                 "psr-4": {
-                    "Slim\\": "Slim",
-                    "Slim\\Tests\\": "tests"
+                    "Slim\\": "Slim"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -950,7 +951,7 @@
                 "micro",
                 "router"
             ],
-            "time": "2019-10-05T21:24:58+00:00"
+            "time": "2020-01-05T03:51:47+00:00"
         },
         {
             "name": "slim/twig-view",
diff --git a/package-lock.json b/package-lock.json
index 632ad1d..2f7654d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8192,9 +8192,9 @@
       "dev": true
     },
     "sass": {
-      "version": "1.24.0",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.24.0.tgz",
-      "integrity": "sha512-1TsPyMhLTx+9DLlmwg02iBW2p4poGA7LlkWJLpUY/XticFKNhPcx+l4FsIJLKl6oSUfXmAKpVljHEez1hwjqiw==",
+      "version": "1.24.2",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.24.2.tgz",
+      "integrity": "sha512-0JxdMMRd0fOmGFQFRI91vh4n0Ed766ib9JwPUa+1C37zn3VaqlHxbknUn/6LqP/MSfvNPxRYoCrYf5g8vu4OHw==",
       "dev": true,
       "requires": {
         "chokidar": ">=2.0.0 <4.0.0"
diff --git a/package.json b/package.json
index 605c798..55e7e92 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
         "laravel-mix": "^5.0.1",
         "laravel-mix-purgecss": "^4.2.0",
         "resolve-url-loader": "^3.1.1",
-        "sass": "^1.24.0",
+        "sass": "^1.24.2",
         "sass-loader": "^8.0.0",
         "tailwindcss": "^1.1.4",
         "vue-template-compiler": "^2.6.11"