diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityDto.cs
index 6be7d38070..5c643e7fd7 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {
diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityWithUserDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityWithUserDto.cs
index 94086c119b..4321f0b8b1 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityWithUserDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleAuditedEntityWithUserDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {
diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityDto.cs
index 1de40ff4d5..986c2811e7 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {
diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityWithUserDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityWithUserDto.cs
index d5352d5b03..d839d6a516 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityWithUserDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleCreationAuditedEntityWithUserDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {
diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityDto.cs
index d72bf8135d..1f6508f9fb 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {
diff --git a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityWithUserDto.cs b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityWithUserDto.cs
index b5e68e7cb7..89bc2a2155 100644
--- a/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityWithUserDto.cs
+++ b/framework/src/Volo.Abp.Ddd.Application.Contracts/Volo/Abp/Application/Dtos/ExtensibleFullAuditedEntityWithUserDto.cs
@@ -1,6 +1,5 @@
 using System;
 using Volo.Abp.Auditing;
-using Volo.Abp.Data;
 
 namespace Volo.Abp.Application.Dtos
 {