diff --git a/Blog.Core.Common/Attribute/UseTranAttribute.cs b/Blog.Core.Common/Attribute/UseTranAttribute.cs
index 913ada0..5a2b021 100644
--- a/Blog.Core.Common/Attribute/UseTranAttribute.cs
+++ b/Blog.Core.Common/Attribute/UseTranAttribute.cs
@@ -1,5 +1,5 @@
 using System;
-using Ivytalk.FoodSafety.Common.DB.UnitOfWork;
+using Blog.Core.Common.DB;
 
 namespace Blog.Core.Common
 {
diff --git a/Blog.Core.Common/DB/Propagation.cs b/Blog.Core.Common/DB/Propagation.cs
index 6ea2c30..34dfe64 100644
--- a/Blog.Core.Common/DB/Propagation.cs
+++ b/Blog.Core.Common/DB/Propagation.cs
@@ -1,4 +1,4 @@
-namespace Ivytalk.FoodSafety.Common.DB.UnitOfWork;
+namespace Blog.Core.Common.DB;
 
 public enum Propagation
 {
diff --git a/Blog.Core.Common/Extensions/MethodInfoExtensions.cs b/Blog.Core.Common/Extensions/MethodInfoExtensions.cs
index 063ce4d..a19bb30 100644
--- a/Blog.Core.Common/Extensions/MethodInfoExtensions.cs
+++ b/Blog.Core.Common/Extensions/MethodInfoExtensions.cs
@@ -1,6 +1,6 @@
 using System.Reflection;
 
-namespace Ivytalk.FoodSafety.Common.Extensions;
+namespace Blog.Core.Common.Extensions;
 
 public static class MethodInfoExtensions
 {
diff --git a/Blog.Core.Repository/UnitOfWork/UnitOfWork.cs b/Blog.Core.Repository/UnitOfWork/UnitOfWork.cs
index c2f15c7..d487542 100644
--- a/Blog.Core.Repository/UnitOfWork/UnitOfWork.cs
+++ b/Blog.Core.Repository/UnitOfWork/UnitOfWork.cs
@@ -2,8 +2,8 @@
 using System.Collections.Concurrent;
 using System.Reflection;
 using System.Threading;
+using Blog.Core.Common.Extensions;
 using Blog.Core.IRepository.UnitOfWork;
-using Ivytalk.FoodSafety.Common.Extensions;
 using Microsoft.Extensions.Logging;
 using SqlSugar;
 
diff --git a/Blog.Core.Services/GuestbookServices.cs b/Blog.Core.Services/GuestbookServices.cs
index 2296a76..2fde462 100644
--- a/Blog.Core.Services/GuestbookServices.cs
+++ b/Blog.Core.Services/GuestbookServices.cs
@@ -7,7 +7,7 @@ using Blog.Core.Model.Models;
 using Blog.Core.Services.BASE;
 using System;
 using System.Threading.Tasks;
-using Ivytalk.FoodSafety.Common.DB.UnitOfWork;
+using Blog.Core.Common.DB;
 
 namespace Blog.Core.Services
 {
diff --git a/Blog.Core.Services/PasswordLibServices.cs b/Blog.Core.Services/PasswordLibServices.cs
index 84f3e84..de58a6b 100644
--- a/Blog.Core.Services/PasswordLibServices.cs
+++ b/Blog.Core.Services/PasswordLibServices.cs
@@ -1,11 +1,11 @@
 using System;
 using System.Threading.Tasks;
 using Blog.Core.Common;
+using Blog.Core.Common.DB;
 using Blog.Core.IRepository.Base;
 using Blog.Core.IServices;
 using Blog.Core.Model.Models;
 using Blog.Core.Services.BASE;
-using Ivytalk.FoodSafety.Common.DB.UnitOfWork;
 
 namespace Blog.Core.Services
 {