diff --git a/templates/mvc/src/MyCompanyName.MyProjectName.EntityFrameworkCore/EntityFrameworkCore/MyProjectNameDbContext.cs b/templates/mvc/src/MyCompanyName.MyProjectName.EntityFrameworkCore/EntityFrameworkCore/MyProjectNameDbContext.cs
index 4cea91b369..f26ede167b 100644
--- a/templates/mvc/src/MyCompanyName.MyProjectName.EntityFrameworkCore/EntityFrameworkCore/MyProjectNameDbContext.cs
+++ b/templates/mvc/src/MyCompanyName.MyProjectName.EntityFrameworkCore/EntityFrameworkCore/MyProjectNameDbContext.cs
@@ -1,6 +1,7 @@
 using Microsoft.EntityFrameworkCore;
 using Volo.Abp.AuditLogging.EntityFrameworkCore;
 using Volo.Abp.BackgroundJobs.EntityFrameworkCore;
+using Volo.Abp.Data;
 using Volo.Abp.EntityFrameworkCore;
 using Volo.Abp.Identity.EntityFrameworkCore;
 using Volo.Abp.PermissionManagement.EntityFrameworkCore;
@@ -8,6 +9,7 @@ using Volo.Abp.SettingManagement.EntityFrameworkCore;
 
 namespace MyCompanyName.MyProjectName.EntityFrameworkCore
 {
+    [ConnectionStringName("Default")]
     public class MyProjectNameDbContext : AbpDbContext<MyProjectNameDbContext>
     {
         public MyProjectNameDbContext(DbContextOptions<MyProjectNameDbContext> options)
diff --git a/templates/mvc/src/MyCompanyName.MyProjectName.MongoDB/MongoDb/MyProjectNameMongoDbContext.cs b/templates/mvc/src/MyCompanyName.MyProjectName.MongoDB/MongoDb/MyProjectNameMongoDbContext.cs
index 2a5fcfedb4..19c21ca038 100644
--- a/templates/mvc/src/MyCompanyName.MyProjectName.MongoDB/MongoDb/MyProjectNameMongoDbContext.cs
+++ b/templates/mvc/src/MyCompanyName.MyProjectName.MongoDB/MongoDb/MyProjectNameMongoDbContext.cs
@@ -1,8 +1,9 @@
-using MongoDB.Driver;
+using Volo.Abp.Data;
 using Volo.Abp.MongoDB;
 
 namespace MyCompanyName.MyProjectName.MongoDb
 {
+    [ConnectionStringName("Default")]
     public class MyProjectNameMongoDbContext : AbpMongoDbContext
     {