diff --git a/Twig/Extension/SyntaxExtension.php b/Twig/Extension/SyntaxExtension.php
index 15595b3..d001677 100644
--- a/Twig/Extension/SyntaxExtension.php
+++ b/Twig/Extension/SyntaxExtension.php
@@ -22,8 +22,8 @@ class SyntaxExtension extends \Twig_Extension
     public function getFilters()
     {
         return array(
-            new \Twig_SimpleFilter('format_sql', array($this, 'formatSQL', array('is_safe' => array('html')))),
-            new \Twig_SimpleFilter('format_memory', array($this, 'formatMemory')),
+            new \Twig_Filter('format_sql', [$this, 'formatSQL'], ['is_safe' => ['html']]),
+            new \Twig_Filter('format_memory', [$this, 'formatMemory']),
         );
     }