diff --git a/composer.json b/composer.json
index 98dc2a3..6b68ed1 100644
--- a/composer.json
+++ b/composer.json
@@ -3,6 +3,6 @@
     "type": "project",
     "license": "proprietary",
     "require": {
-        "twig/twig": "^2.0"
+        "twig/twig": "^3.0"
     }
 }
diff --git a/helloworld.php b/helloworld.php
index 1dc3910..be952b8 100644
--- a/helloworld.php
+++ b/helloworld.php
@@ -1,7 +1,10 @@
 <?php
 
-$twig = new Twig_Environment(
-    new Twig_Loader_Filesystem(__DIR__ . '/templates'),
+use Twig\Environment;
+use Twig\Loader\FilesystemLoader;
+
+$twig = new Environment(
+    new FilesystemLoader(__DIR__ . '/templates'),
     ['cache' => $cacheDir]
 );