diff --git a/modules/users/src/Volo.Abp.Users.Abstractions/Volo/Abp/Users/UserPasswordChangeRequestedEto.cs b/modules/users/src/Volo.Abp.Users.Abstractions/Volo/Abp/Users/UserPasswordChangeRequestedEto.cs
index d570acab95..e729316b02 100644
--- a/modules/users/src/Volo.Abp.Users.Abstractions/Volo/Abp/Users/UserPasswordChangeRequestedEto.cs
+++ b/modules/users/src/Volo.Abp.Users.Abstractions/Volo/Abp/Users/UserPasswordChangeRequestedEto.cs
@@ -1,13 +1,14 @@
 using System;
 using Volo.Abp.EventBus;
+using Volo.Abp.MultiTenancy;
 
 namespace Volo.Abp.Users;
 
-[Serializable]
+//[Serializable]
 [EventName("Volo.Abp.Users.UserPasswordChangeRequested")]
-public class UserPasswordChangeRequestedEto
+public class UserPasswordChangeRequestedEto : IMultiTenant
 {
-    public Guid TenantId { get; set; }
+    public Guid? TenantId { get; set; }
 
     public string UserName { get; set; }