diff --git a/pages/blog/what-is-hash-index.mdx b/pages/blog/what-is-hash-index.mdx
index 844a253..36c3524 100644
--- a/pages/blog/what-is-hash-index.mdx
+++ b/pages/blog/what-is-hash-index.mdx
@@ -6,7 +6,7 @@ category: "Technical Article"
 date: December 24, 2024
 ---
 [![Click to use](/image/blog/bg/chat2db1.png)](https://app.chat2db.ai/)
-What is Hash Index: A Comprehensive Guide to Efficient Data Retrieval
+# What is Hash Index: A Comprehensive Guide to Efficient Data Retrieval
 
 import Authors, { Author } from "components/authors";