diff --git a/composer.json b/composer.json
index 9f56bab7..2beeeb68 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
         "swiftmailer/swiftmailer": "^6.2",
         "symfony/http-foundation": "^4.3",
         "symfony/psr-http-message-bridge": "^1.2",
-        "twig/twig": "~2.6.0",
+        "twig/twig": "^2.11",
         "vlucas/phpdotenv": "^3.3"
     },
     "require-dev": {
diff --git a/resources/views/layouts/parts/navbar.twig b/resources/views/layouts/parts/navbar.twig
index 0b2eee63..9045601b 100644
--- a/resources/views/layouts/parts/navbar.twig
+++ b/resources/views/layouts/parts/navbar.twig
@@ -1,5 +1,3 @@
-{% import _self as elements %}
-
 {% macro toolbar_item(label, link, active_page, icon) %}
     <li{% if page() == active_page %} class="active"{% endif %}>
         <a href="{{ link }}">
@@ -36,23 +34,23 @@
                         <ul class="nav navbar-nav navbar-right">
 
                             {% if is_user() %}
-                                {{ elements.toolbar_item(menuUserShiftState(user), url('shifts', {'action': 'next'}), '', 'glyphicon-time') }}
+                                {{ _self.toolbar_item(menuUserShiftState(user), url('shifts', {'action': 'next'}), '', 'glyphicon-time') }}
                             {% elseif has_permission_to('register') and config('registration_enabled') %}
-                                {{ elements.toolbar_item(__('Register'), url('register'), 'register', 'glyphicon-plus') }}
+                                {{ _self.toolbar_item(__('Register'), url('register'), 'register', 'glyphicon-plus') }}
                             {% endif %}
 
                             {% if has_permission_to('login') %}
-                                {{ elements.toolbar_item(__('Login'), url('login'), 'login', 'glyphicon-log-in') }}
+                                {{ _self.toolbar_item(__('Login'), url('login'), 'login', 'glyphicon-log-in') }}
                             {% endif %}
 
                             {% if is_user() and has_permission_to('user_messages') %}
-                                {{ elements.toolbar_item(menuUserMessages(), url('user-messages'), 'user-messages', 'glyphicon-envelope') }}
+                                {{ _self.toolbar_item(menuUserMessages(), url('user-messages'), 'user-messages', 'glyphicon-envelope') }}
                             {% endif %}
 
                             {{ menuUserHints() }}
 
                             {% if has_permission_to('user_myshifts') %}
-                                {{ elements.toolbar_item(user.name, url('users', {'action': 'view'}), 'users', 'icon icon-icon_angel') }}
+                                {{ _self.toolbar_item(user.name, url('users', {'action': 'view'}), 'users', 'icon icon-icon_angel') }}
                             {% endif %}
 
                             <li class="dropdown">
diff --git a/resources/views/pages/login.twig b/resources/views/pages/login.twig
index d8a9bd4e..fdb5b116 100644
--- a/resources/views/pages/login.twig
+++ b/resources/views/pages/login.twig
@@ -17,7 +17,7 @@
                 (__('Event starts')): config('event_start'),
                 (__('Event ends')): config('event_end'),
                 (__('Teardown ends')): config('teardown_end')
-            } if date %}
+            } | filter(date => date) %}
                 {% if date > date() %}
                     <div class="col-sm-3 text-center hidden-xs">
                         <h4>{{ name }}</h4>
diff --git a/src/Middleware/ErrorHandler.php b/src/Middleware/ErrorHandler.php
index b8f8b166..46e6e5a8 100644
--- a/src/Middleware/ErrorHandler.php
+++ b/src/Middleware/ErrorHandler.php
@@ -11,7 +11,7 @@ use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Server\MiddlewareInterface;
 use Psr\Http\Server\RequestHandlerInterface;
-use Twig_LoaderInterface as TwigLoader;
+use Twig\Loader\LoaderInterface as TwigLoader;
 
 class ErrorHandler implements MiddlewareInterface
 {
diff --git a/src/Renderer/Twig/Extensions/Assets.php b/src/Renderer/Twig/Extensions/Assets.php
index 2cdfb0fd..b77e4755 100644
--- a/src/Renderer/Twig/Extensions/Assets.php
+++ b/src/Renderer/Twig/Extensions/Assets.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Http\UrlGenerator;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Assets extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Authentication.php b/src/Renderer/Twig/Extensions/Authentication.php
index 538526da..33268ee6 100644
--- a/src/Renderer/Twig/Extensions/Authentication.php
+++ b/src/Renderer/Twig/Extensions/Authentication.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Helpers\Authenticator;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Authentication extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Config.php b/src/Renderer/Twig/Extensions/Config.php
index dbbe93e7..a82d2f73 100644
--- a/src/Renderer/Twig/Extensions/Config.php
+++ b/src/Renderer/Twig/Extensions/Config.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Config\Config as EngelsystemConfig;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Config extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Csrf.php b/src/Renderer/Twig/Extensions/Csrf.php
index 9f77df80..6e326824 100644
--- a/src/Renderer/Twig/Extensions/Csrf.php
+++ b/src/Renderer/Twig/Extensions/Csrf.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Csrf extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Globals.php b/src/Renderer/Twig/Extensions/Globals.php
index ef29a819..a7914623 100644
--- a/src/Renderer/Twig/Extensions/Globals.php
+++ b/src/Renderer/Twig/Extensions/Globals.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Helpers\Authenticator;
-use Twig_Extension as TwigExtension;
-use Twig_Extension_GlobalsInterface as GlobalsInterface;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\Extension\GlobalsInterface as GlobalsInterface;
 
 class Globals extends TwigExtension implements GlobalsInterface
 {
diff --git a/src/Renderer/Twig/Extensions/Legacy.php b/src/Renderer/Twig/Extensions/Legacy.php
index 55c095fc..41b00468 100644
--- a/src/Renderer/Twig/Extensions/Legacy.php
+++ b/src/Renderer/Twig/Extensions/Legacy.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Http\Request;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Legacy extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Markdown.php b/src/Renderer/Twig/Extensions/Markdown.php
index 293efe91..3d523f57 100644
--- a/src/Renderer/Twig/Extensions/Markdown.php
+++ b/src/Renderer/Twig/Extensions/Markdown.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Parsedown;
-use Twig_Extension as TwigExtension;
-use Twig_Filter as TwigFilter;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFilter;
 
 class Markdown extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Session.php b/src/Renderer/Twig/Extensions/Session.php
index 4690f701..378e977e 100644
--- a/src/Renderer/Twig/Extensions/Session.php
+++ b/src/Renderer/Twig/Extensions/Session.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Symfony\Component\HttpFoundation\Session\Session as SymfonySession;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Session extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Translation.php b/src/Renderer/Twig/Extensions/Translation.php
index 929310a1..63b6fa5e 100644
--- a/src/Renderer/Twig/Extensions/Translation.php
+++ b/src/Renderer/Twig/Extensions/Translation.php
@@ -3,9 +3,9 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Helpers\Translation\Translator;
-use Twig_Extension as TwigExtension;
-use Twig_Filter as TwigFilter;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFilter;
+use Twig\TwigFunction;
 
 class Translation extends TwigExtension
 {
diff --git a/src/Renderer/Twig/Extensions/Url.php b/src/Renderer/Twig/Extensions/Url.php
index 62e59782..84c6aa4d 100644
--- a/src/Renderer/Twig/Extensions/Url.php
+++ b/src/Renderer/Twig/Extensions/Url.php
@@ -3,8 +3,8 @@
 namespace Engelsystem\Renderer\Twig\Extensions;
 
 use Engelsystem\Http\UrlGenerator;
-use Twig_Extension as TwigExtension;
-use Twig_Function as TwigFunction;
+use Twig\Extension\AbstractExtension as TwigExtension;
+use Twig\TwigFunction;
 
 class Url extends TwigExtension
 {
diff --git a/src/Renderer/TwigEngine.php b/src/Renderer/TwigEngine.php
index aa51a177..2c77e54f 100644
--- a/src/Renderer/TwigEngine.php
+++ b/src/Renderer/TwigEngine.php
@@ -2,10 +2,10 @@
 
 namespace Engelsystem\Renderer;
 
-use Twig_Environment as Twig;
-use Twig_Error_Loader as LoaderError;
-use Twig_Error_Runtime as RuntimeError;
-use Twig_Error_Syntax as SyntaxError;
+use Twig\Environment as Twig;
+use Twig\Error\LoaderError as LoaderError;
+use Twig\Error\RuntimeError as RuntimeError;
+use Twig\Error\SyntaxError as SyntaxError;
 
 class TwigEngine extends Engine
 {
diff --git a/src/Renderer/TwigLoader.php b/src/Renderer/TwigLoader.php
index f20a8764..3c4c8ab8 100644
--- a/src/Renderer/TwigLoader.php
+++ b/src/Renderer/TwigLoader.php
@@ -2,16 +2,16 @@
 
 namespace Engelsystem\Renderer;
 
-use Twig_Error_Loader;
-use Twig_Loader_Filesystem as FilesystemLoader;
+use Twig\Error\LoaderError as ErrorLoader;
+use Twig\Loader\FilesystemLoader as FilesystemLoader;
 
 class TwigLoader extends FilesystemLoader
 {
     /**
      * @param string $name
      * @param bool   $throw
-     * @return false|string
-     * @throws Twig_Error_Loader
+     * @return string|false|null
+     * @throws ErrorLoader
      */
     public function findTemplate($name, $throw = true)
     {
diff --git a/src/Renderer/TwigServiceProvider.php b/src/Renderer/TwigServiceProvider.php
index 6cd885fd..3a365a5e 100644
--- a/src/Renderer/TwigServiceProvider.php
+++ b/src/Renderer/TwigServiceProvider.php
@@ -14,9 +14,9 @@ use Engelsystem\Renderer\Twig\Extensions\Markdown;
 use Engelsystem\Renderer\Twig\Extensions\Session;
 use Engelsystem\Renderer\Twig\Extensions\Translation;
 use Engelsystem\Renderer\Twig\Extensions\Url;
-use Twig_Environment as Twig;
-use Twig_Extension_Core as TwigCore;
-use Twig_LoaderInterface as TwigLoaderInterface;
+use Twig\Environment as Twig;
+use Twig\Extension\CoreExtension as TwigCore;
+use Twig\Loader\LoaderInterface as TwigLoaderInterface;
 
 class TwigServiceProvider extends ServiceProvider
 {
diff --git a/tests/Unit/Middleware/ErrorHandlerTest.php b/tests/Unit/Middleware/ErrorHandlerTest.php
index 6ae604e0..ef2f7be0 100644
--- a/tests/Unit/Middleware/ErrorHandlerTest.php
+++ b/tests/Unit/Middleware/ErrorHandlerTest.php
@@ -19,7 +19,7 @@ use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Server\RequestHandlerInterface;
 use Symfony\Component\HttpFoundation\Session\Session;
 use Symfony\Component\HttpFoundation\Session\Storage\MockArraySessionStorage;
-use Twig_LoaderInterface as TwigLoader;
+use Twig\Loader\LoaderInterface as TwigLoader;
 
 class ErrorHandlerTest extends TestCase
 {
diff --git a/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php b/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php
index 921a06a3..3d7cea12 100644
--- a/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php
+++ b/tests/Unit/Renderer/Twig/Extensions/ExtensionTest.php
@@ -6,8 +6,8 @@ use DMS\PHPUnitExtensions\ArraySubset\ArraySubsetAsserts;
 use Exception;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Twig_Function as TwigFunction;
-use Twig_Node as TwigNode;
+use Twig\TwigFunction;
+use Twig\Node\Node as TwigNode;
 
 abstract class ExtensionTest extends TestCase
 {
diff --git a/tests/Unit/Renderer/TwigEngineTest.php b/tests/Unit/Renderer/TwigEngineTest.php
index 5e5e59d9..8798d0ff 100644
--- a/tests/Unit/Renderer/TwigEngineTest.php
+++ b/tests/Unit/Renderer/TwigEngineTest.php
@@ -5,8 +5,8 @@ namespace Engelsystem\Test\Unit\Renderer;
 use Engelsystem\Renderer\TwigEngine;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use Twig_Environment as Twig;
-use Twig_LoaderInterface as LoaderInterface;
+use Twig\Environment as Twig;
+use Twig\Loader\LoaderInterface as LoaderInterface;
 
 class TwigEngineTest extends TestCase
 {
diff --git a/tests/Unit/Renderer/TwigServiceProviderTest.php b/tests/Unit/Renderer/TwigServiceProviderTest.php
index cd071349..7696d28f 100644
--- a/tests/Unit/Renderer/TwigServiceProviderTest.php
+++ b/tests/Unit/Renderer/TwigServiceProviderTest.php
@@ -11,10 +11,10 @@ use PHPUnit\Framework\MockObject\MockObject;
 use ReflectionClass as Reflection;
 use ReflectionException;
 use stdClass;
-use Twig_Environment as Twig;
-use Twig_Extension_Core as TwigCore;
-use Twig_ExtensionInterface as ExtensionInterface;
-use Twig_LoaderInterface as TwigLoaderInterface;
+use Twig\Environment as Twig;
+use Twig\Extension\CoreExtension as TwigCore;
+use Twig\Extension\ExtensionInterface as ExtensionInterface;
+use Twig\Loader\LoaderInterface as TwigLoaderInterface;
 
 class TwigServiceProviderTest extends ServiceProviderTest
 {