diff --git a/framework/src/Volo.Abp.EventBus.Boxes/Volo/Abp/EventBus/Boxes/OutboxSender.cs b/framework/src/Volo.Abp.EventBus.Boxes/Volo/Abp/EventBus/Boxes/OutboxSender.cs
index df0d616b28..261ff6512b 100644
--- a/framework/src/Volo.Abp.EventBus.Boxes/Volo/Abp/EventBus/Boxes/OutboxSender.cs
+++ b/framework/src/Volo.Abp.EventBus.Boxes/Volo/Abp/EventBus/Boxes/OutboxSender.cs
@@ -11,7 +11,6 @@ using Volo.Abp.Threading;
 
 namespace Volo.Abp.EventBus.Boxes
 {
-    //TODO: use distributed lock!
     public class OutboxSender : IOutboxSender, ITransientDependency
     {
         protected IServiceProvider ServiceProvider { get; }