diff --git a/upgrade/upgrade-4.5.0.php b/upgrade/upgrade-4.5.0.php
index 4bd2c6d..345642d 100644
--- a/upgrade/upgrade-4.5.0.php
+++ b/upgrade/upgrade-4.5.0.php
@@ -23,6 +23,8 @@
  * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License 3.0 (AFL-3.0)
  * International Registered Trademark & Property of PrestaShop SA
  */
+
+use Db;
 use PrestaShop\Module\Doofinder\Lib\SearchEngine;
 
 if (!defined('_PS_VERSION_') || !defined('_PS_MODULE_DIR_')) {