diff --git a/modules/cms-kit/src/Volo.CmsKit.Admin.Application/Volo/CmsKit/Admin/Tags/EntityTagAdminAppService.cs b/modules/cms-kit/src/Volo.CmsKit.Admin.Application/Volo/CmsKit/Admin/Tags/EntityTagAdminAppService.cs
index 0863e7d138..3bfe8f2df8 100644
--- a/modules/cms-kit/src/Volo.CmsKit.Admin.Application/Volo/CmsKit/Admin/Tags/EntityTagAdminAppService.cs
+++ b/modules/cms-kit/src/Volo.CmsKit.Admin.Application/Volo/CmsKit/Admin/Tags/EntityTagAdminAppService.cs
@@ -8,14 +8,14 @@ namespace Volo.CmsKit.Admin.Tags
     public class EntityTagAdminAppService : CmsKitAdminAppServiceBase, IEntityTagAdminAppService
     {
         protected ITagDefinitionStore TagDefinitionStore { get; }
-        protected IEntityTagManager EntityTagManager { get; }
+        protected EntityTagManager EntityTagManager { get; }
         protected TagManager TagManager { get; }
         protected ITagRepository TagRepository { get; }
         protected IEntityTagRepository EntityTagRepository { get; }
 
         public EntityTagAdminAppService(
             ITagDefinitionStore tagDefinitionStore,
-            IEntityTagManager entityTagManager,
+            EntityTagManager entityTagManager,
             TagManager tagManager,
             ITagRepository tagRepository,
             IEntityTagRepository entityTagRepository)
diff --git a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/EntityTagManager.cs b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/EntityTagManager.cs
index ad7a3088d5..fbb9ab2e93 100644
--- a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/EntityTagManager.cs
+++ b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/EntityTagManager.cs
@@ -6,7 +6,7 @@ using Volo.Abp.Domain.Services;
 
 namespace Volo.CmsKit.Tags
 {
-    public class EntityTagManager : DomainService, IEntityTagManager
+    public class EntityTagManager : DomainService
     {
         protected IEntityTagRepository EntityTagRepository { get; }
         protected ITagDefinitionStore TagDefinitionStore { get; }
diff --git a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/IEntityTagManager.cs b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/IEntityTagManager.cs
deleted file mode 100644
index 704568619a..0000000000
--- a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Tags/IEntityTagManager.cs
+++ /dev/null
@@ -1,24 +0,0 @@
-using JetBrains.Annotations;
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace Volo.CmsKit.Tags
-{
-    public interface IEntityTagManager
-    {
-        Task<EntityTag> AddTagToEntityAsync(
-            [NotNull] Guid tagId,
-            [NotNull] string entityType,
-            [NotNull] string entityId,
-            [CanBeNull] Guid? tenantId = null,
-            CancellationToken cancellationToken = default);
-
-        Task RemoveTagFromEntityAsync(
-            [NotNull] Guid tagId,
-            [NotNull] string entityType,
-            [NotNull] string entityId,
-            [CanBeNull] Guid? tenantId = null,
-            CancellationToken cancellationToken = default);
-    }
-}
diff --git a/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/EntityTagManager_Tests.cs b/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/EntityTagManager_Tests.cs
index 5a6144733c..b3e5e49fd1 100644
--- a/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/EntityTagManager_Tests.cs
+++ b/modules/cms-kit/test/Volo.CmsKit.Domain.Tests/Tags/EntityTagManager_Tests.cs
@@ -9,14 +9,14 @@ namespace Volo.CmsKit.Tags
     public class EntityTagManager_Tests : CmsKitDomainTestBase
     {
         private readonly CmsKitTestData _cmsKitTestData;
-        private readonly IEntityTagManager _entityTagManager;
+        private readonly EntityTagManager _entityTagManager;
         private readonly ITagRepository _tagRepository;
         private readonly IGuidGenerator _guidGenerator;
 
         public EntityTagManager_Tests()
         {
             _cmsKitTestData = GetRequiredService<CmsKitTestData>();
-            _entityTagManager = GetRequiredService<IEntityTagManager>();
+            _entityTagManager = GetRequiredService<EntityTagManager>();
             _tagRepository = GetRequiredService<ITagRepository>();
             _guidGenerator = GetRequiredService<IGuidGenerator>();
         }
diff --git a/modules/cms-kit/test/Volo.CmsKit.TestBase/CmsKitDataSeedContributor.cs b/modules/cms-kit/test/Volo.CmsKit.TestBase/CmsKitDataSeedContributor.cs
index 4ecc6c556a..56e28ed27e 100644
--- a/modules/cms-kit/test/Volo.CmsKit.TestBase/CmsKitDataSeedContributor.cs
+++ b/modules/cms-kit/test/Volo.CmsKit.TestBase/CmsKitDataSeedContributor.cs
@@ -34,7 +34,7 @@ namespace Volo.CmsKit
         private readonly IRatingRepository _ratingRepository;
         private readonly ICurrentTenant _currentTenant;
         private readonly IContentRepository _contentRepository;
-        private readonly IEntityTagManager _entityTagManager;
+        private readonly EntityTagManager _entityTagManager;
         private readonly TagManager _tagManager;
         private readonly IEntityTagRepository _entityTagRepository;
         private readonly IPageRepository _pageRepository;
@@ -61,7 +61,7 @@ namespace Volo.CmsKit
             IBlogRepository blogRepository,
             IBlogPostRepository blogPostRepository,
             IBlogFeatureRepository blogFeatureRepository,
-            IEntityTagManager entityTagManager,
+            EntityTagManager entityTagManager,
             IOptions<CmsKitOptions> options,
             IOptions<CmsKitTagOptions> tagOptions, 
             IMediaDescriptorRepository mediaDescriptorRepository,