diff --git a/Twig/Extension/PhoneNumberHelperExtension.php b/Twig/Extension/PhoneNumberHelperExtension.php
index fdccc101..5bbfa78f 100644
--- a/Twig/Extension/PhoneNumberHelperExtension.php
+++ b/Twig/Extension/PhoneNumberHelperExtension.php
@@ -12,11 +12,15 @@
 namespace Misd\PhoneNumberBundle\Twig\Extension;
 
 use Misd\PhoneNumberBundle\Templating\Helper\PhoneNumberHelper;
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
+use Twig\TwigFunction;
+use Twig\TwigTest;
 
 /**
  * Phone number helper Twig extension.
  */
-class PhoneNumberHelperExtension extends \Twig_Extension
+class PhoneNumberHelperExtension extends AbstractExtension
 {
     /**
      * Phone number helper.
@@ -41,8 +45,8 @@ public function __construct(PhoneNumberHelper $helper)
     public function getFunctions()
     {
         return array(
-            new \Twig_SimpleFunction('phone_number_format', array($this->helper, 'format'), array('deprecated' => '1.2')),
-            new \Twig_SimpleFunction('phone_number_is_type', array($this->helper, 'isType'), array('deprecated' => '1.2')),
+            new TwigFunction('phone_number_format', array($this->helper, 'format'), array('deprecated' => '1.2')),
+            new TwigFunction('phone_number_is_type', array($this->helper, 'isType'), array('deprecated' => '1.2')),
         );
     }
 
@@ -52,7 +56,7 @@ public function getFunctions()
     public function getFilters()
     {
         return array(
-            new \Twig_SimpleFilter('phone_number_format', array($this->helper, 'format')),
+            new TwigFilter('phone_number_format', array($this->helper, 'format')),
         );
     }
 
@@ -62,7 +66,7 @@ public function getFilters()
     public function getTests()
     {
         return array(
-            new \Twig_SimpleTest('phone_number_of_type', array($this->helper, 'isType')),
+            new TwigTest('phone_number_of_type', array($this->helper, 'isType')),
         );
     }
 
diff --git a/composer.json b/composer.json
index 3ef12f77..28d683f2 100644
--- a/composer.json
+++ b/composer.json
@@ -11,17 +11,17 @@
     "require": {
         "php": ">=5.3.9",
         "giggsey/libphonenumber-for-php": "~5.7|~6.0|~7.0|~8.0",
-        "symfony/framework-bundle": "~2.7|~3.0|~4.0"
+        "symfony/framework-bundle": "~2.7|~3.0|~4.0|~5.0"
     },
     "require-dev": {
         "doctrine/doctrine-bundle": "~1.0",
         "jms/serializer-bundle": "~0.11|~1.0|~2.0",
         "phpunit/phpunit": "~4.0|^5.7",
-        "symfony/form": "~2.7|~3.0|~4.0",
-        "symfony/serializer": "~2.7|~3.1|~4.0",
-        "symfony/templating": "~2.7|~3.0|~4.0",
-        "symfony/twig-bundle": "~2.7|~3.0|~4.0",
-        "symfony/validator": "~2.7|~3.0|~4.0"
+        "symfony/form": "~2.7|~3.0|~4.0|~5.0",
+        "symfony/serializer": "~2.7|~3.1|~4.0|~5.0",
+        "symfony/templating": "~2.7|~3.0|~4.0|~5.0",
+        "symfony/twig-bundle": "~2.7|~3.0|~4.0|~5.0",
+        "symfony/validator": "~2.7|~3.0|~4.0|~5.0"
     },
     "conflict": {
         "twig/twig": "<1.12.0"