diff --git a/lib/Cron/Workers/KeyCheck/KeyCheckWorker.php b/lib/Cron/Workers/KeyCheck/KeyCheckWorker.php
index a3593f7445..a92825cc05 100644
--- a/lib/Cron/Workers/KeyCheck/KeyCheckWorker.php
+++ b/lib/Cron/Workers/KeyCheck/KeyCheckWorker.php
@@ -2,10 +2,10 @@
 
 namespace MailPoet\Cron\Workers\KeyCheck;
 
-use Carbon\Carbon;
 use MailPoet\Cron\Workers\SimpleWorker;
 use MailPoet\Models\ScheduledTask;
 use MailPoet\Services\Bridge;
+use MailPoetVendor\Carbon\Carbon;
 
 abstract class KeyCheckWorker extends SimpleWorker {
   public $bridge;