diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index 961213f642..de37baf663 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -300,7 +300,7 @@ function wp_default_styles( &$styles ) {
 
 	$rtl_styles = array( 'global', 'colors', 'dashboard', 'ie', 'install', 'login', 'media', 'theme-editor', 'upload', 'widgets', 'press-this', 'press-this-ie', 'plugin-install', 'farbtastic' );
 
-	$styles->add( 'wp-admin', '/wp-admin/wp-admin.css', array(), '20081115' );
+	$styles->add( 'wp-admin', '/wp-admin/wp-admin.css', array(), '20081117' );
 	$styles->add_data( 'wp-admin', 'rtl', '/wp-admin/rtl.css' );
 
 	$styles->add( 'ie', '/wp-admin/css/ie.css' );