diff --git a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Blogs/IBlogPostRepository.cs b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Blogs/IBlogPostRepository.cs
index b96cd6157b..885d0de800 100644
--- a/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Blogs/IBlogPostRepository.cs
+++ b/modules/cms-kit/src/Volo.CmsKit.Domain/Volo/CmsKit/Blogs/IBlogPostRepository.cs
@@ -45,5 +45,5 @@ public interface IBlogPostRepository : IBasicRepository<BlogPost, Guid>
 
     Task<bool> HasBlogPostWaitingForReviewAsync(CancellationToken cancellationToken = default);
 
-    Task UpdateBlogAsync(Guid sourceBlogId, Guid? targetBlogId, CancellationToken cancellationToken = default);
+    Task UpdateBlogAsync(Guid sourceBlogId, Guid? targetBlogId = null, CancellationToken cancellationToken = default);
 }
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