diff --git a/wp-admin/update.php b/wp-admin/update.php
index d6d1714b9..aedda30d3 100644
--- a/wp-admin/update.php
+++ b/wp-admin/update.php
@@ -36,7 +36,6 @@ if ( isset($_GET['action']) ) {
 		$url = 'update.php?action=update-selected&plugins=' . urlencode(implode(',', $plugins));
 		$nonce = 'bulk-update-plugins';
 
-		require_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
 		wp_enqueue_script('jquery');
 		iframe_header();
 
@@ -185,7 +184,6 @@ if ( isset($_GET['action']) ) {
 		$url = 'update.php?action=update-selected-themes&themes=' . urlencode(implode(',', $themes));
 		$nonce = 'bulk-update-themes';
 
-		require_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
 		wp_enqueue_script('jquery');
 		iframe_header();