diff --git a/admin/upgrade.php b/admin/upgrade.php
index a05c2bde..ad0834ca 100644
--- a/admin/upgrade.php
+++ b/admin/upgrade.php
@@ -29,5 +29,12 @@ include 'menu.php';
 <?php
 include 'copyright.php';
 include 'common-js.php';
-include 'footer.php';
 ?>
+<script>
+(function () {
+    if (window.sessionStorage) {
+        sessionStorage.removeItem('update');
+    }
+})();
+</script>
+<?php include 'footer.php'; ?>
diff --git a/var/Widget/Upgrade.php b/var/Widget/Upgrade.php
index 5feae4a0..bb19d44b 100644
--- a/var/Widget/Upgrade.php
+++ b/var/Widget/Upgrade.php
@@ -104,9 +104,6 @@ class Widget_Upgrade extends Widget_Abstract_Options implements Widget_Interface
         $this->update(array('value' => 'Typecho ' . Typecho_Common::VERSION),
         $this->db->sql()->where('name = ?', 'generator'));
 
-        /** 删除更新cookie */
-        Typecho_Cookie::delete('__typecho_check_version');
-
         $this->widget('Widget_Notice')->set(empty($message) ? _t("升级已经完成") : $message,
         empty($message) ? 'success' : 'notice');
     }