diff --git a/modules/blogging/src/Volo.Blogging.MongoDB/Volo/Blogging/Posts/MongoPostTagRepository.cs b/modules/blogging/src/Volo.Blogging.MongoDB/Volo/Blogging/Posts/MongoPostTagRepository.cs
deleted file mode 100644
index edd3ad4bae..0000000000
--- a/modules/blogging/src/Volo.Blogging.MongoDB/Volo/Blogging/Posts/MongoPostTagRepository.cs
+++ /dev/null
@@ -1,30 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using MongoDB.Driver.Linq;
-using Volo.Abp.Domain.Repositories.MongoDB;
-using Volo.Abp.MongoDB;
-using Volo.Blogging.MongoDB;
-
-namespace Volo.Blogging.Posts
-{
-    public class MongoPostTagRepository : MongoDbRepository<IBloggingMongoDbContext, PostTag>, IPostTagRepository
-    {
-        public MongoPostTagRepository(IMongoDbContextProvider<IBloggingMongoDbContext> dbContextProvider) : base(dbContextProvider)
-        {
-        }
-
-        public void DeleteOfPost(Guid id)
-        {
-            var recordsToDelete = GetMongoQueryable().Where(pt => pt.PostId == id);
-            foreach (var record in recordsToDelete)
-            {
-                Delete(record);
-            }
-        }
-
-        public async Task<PostTag> FindByTagIdAndPostIdAsync(Guid postId, Guid tagId)
-        {
-            return await GetMongoQueryable().FirstOrDefaultAsync(pt => pt.PostId == postId && pt.TagId == tagId);
-        }
-    }
-}