diff --git a/core/update.php b/core/update.php
index bbb18a9..a64cb94 100644
--- a/core/update.php
+++ b/core/update.php
@@ -228,8 +228,6 @@ function update_info_page() {
  *   Rendered HTML warning with 403 status.
  */
 function update_access_denied_page() {
-  drupal_add_http_header('Status', '403 Forbidden');
-  header(\Drupal::request()->server->get('SERVER_PROTOCOL') . ' 403 Forbidden');
   watchdog('access denied', 'update.php', NULL, WATCHDOG_WARNING);
   $output = '<p>Access denied. You are not authorized to access this page. Log in using either an account with the <em>administer software updates</em> permission or the site maintenance account (the account you created during installation). If you cannot log in, you will have to edit <code>settings.php</code> to bypass this access check. To do this:</p>
 <ol>