diff --git a/src/Moonglade.Core/PostFeature/UpdatePostCommand.cs b/src/Moonglade.Core/PostFeature/UpdatePostCommand.cs
index 3959822ef..52154f521 100644
--- a/src/Moonglade.Core/PostFeature/UpdatePostCommand.cs
+++ b/src/Moonglade.Core/PostFeature/UpdatePostCommand.cs
@@ -149,7 +149,7 @@ await _tagRepo.AddAsync(new()
 
         await _postRepo.UpdateAsync(post, ct);
 
-        _cache.Remove(BlogCachePartition.Post.ToString(), guid.ToString());
+        _cache.Remove(BlogCachePartition.Post.ToString(), checkSum.ToString());
         return post;
     }
 }