diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/TwigExtensionPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/TwigExtensionPass.php
index 59fc24f..6c6212d 100644
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/TwigExtensionPass.php
+++ b/core/lib/Drupal/Core/DependencyInjection/Compiler/TwigExtensionPass.php
@@ -31,7 +31,7 @@ public function process(ContainerBuilder $container) {
       $twig_extension_hash .= $class_name . filemtime($reflection->getFileName());
     }
 
-    $container->setParameter('twig_extension_hash', hash('sha256', $twig_extension_hash));
+    $container->setParameter('twig_extension_hash', hash('crc32b', $twig_extension_hash));
   }
 
 }
diff --git a/core/lib/Drupal/Core/Template/TwigEnvironment.php b/core/lib/Drupal/Core/Template/TwigEnvironment.php
index 6c3a18c..6c5aaa3 100644
--- a/core/lib/Drupal/Core/Template/TwigEnvironment.php
+++ b/core/lib/Drupal/Core/Template/TwigEnvironment.php
@@ -118,6 +118,7 @@ public function getCacheFilename($name) {
     // shared filesystems. The Twig templates for example rely on available Twig
     // extensions, so we use the twig extension hash which varies by extensions
     // and their mtime.
+    // @see \Drupal\Core\DependencyInjection\Compiler\TwigExtensionPass
 
     if (!$this->cache) {
       return FALSE;