diff --git a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/IMongoDbBulkOperationProvider.cs b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/IMongoDbBulkOperationProvider.cs
index fda7f291c7..cdb91aa4a7 100644
--- a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/IMongoDbBulkOperationProvider.cs
+++ b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/IMongoDbBulkOperationProvider.cs
@@ -3,9 +3,8 @@ using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 using Volo.Abp.Domain.Entities;
-using Volo.Abp.Domain.Repositories.MongoDB;
 
-namespace Volo.Abp.MongoDB.Volo.Abp.Domain.Repositories.MongoDB
+namespace Volo.Abp.Domain.Repositories.MongoDB
 {
     public interface IMongoDbBulkOperationProvider
     {
diff --git a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/MongoDbRepository.cs b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/MongoDbRepository.cs
index 537f6cdad3..b252c48999 100644
--- a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/MongoDbRepository.cs
+++ b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDB/MongoDbRepository.cs
@@ -16,7 +16,6 @@ using Volo.Abp.EventBus.Distributed;
 using Volo.Abp.EventBus.Local;
 using Volo.Abp.Guids;
 using Volo.Abp.MongoDB;
-using Volo.Abp.MongoDB.Volo.Abp.Domain.Repositories.MongoDB;
 
 namespace Volo.Abp.Domain.Repositories.MongoDB
 {
diff --git a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDbCoreRepositoryExtensions.cs b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDbCoreRepositoryExtensions.cs
index ff367dc554..90605f416e 100644
--- a/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDbCoreRepositoryExtensions.cs
+++ b/framework/src/Volo.Abp.MongoDB/Volo/Abp/Domain/Repositories/MongoDbCoreRepositoryExtensions.cs
@@ -22,7 +22,7 @@ namespace Volo.Abp.Domain.Repositories
             return repository.ToMongoDbRepository().GetDatabaseAsync();
         }
 
-        [Obsolete("Use GetCollection method.")]
+        [Obsolete("Use GetCollectionAsync method.")]
         public static IMongoCollection<TEntity> GetCollection<TEntity, TKey>(this IBasicRepository<TEntity, TKey> repository)
             where TEntity : class, IEntity<TKey>
         {