diff --git a/lib/Config/Populator.php b/lib/Config/Populator.php
index d613ffa3e3..e6a0e8a159 100644
--- a/lib/Config/Populator.php
+++ b/lib/Config/Populator.php
@@ -28,8 +28,6 @@ use MailPoet\WP\Functions as WPFunctions;
 
 if (!defined('ABSPATH')) exit;
 
-require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
-
 class Populator {
   public $prefix;
   public $models;