diff --git a/website/docs/guides/markdown-features/markdown-features-code-blocks.mdx b/website/docs/guides/markdown-features/markdown-features-code-blocks.mdx
index 6b8c896fb9..da7e5d0205 100644
--- a/website/docs/guides/markdown-features/markdown-features-code-blocks.mdx
+++ b/website/docs/guides/markdown-features/markdown-features-code-blocks.mdx
@@ -39,7 +39,7 @@ function HelloCodeTitle(props) {
 
 ## Syntax highlighting {#syntax-highlighting}
 
-Code blocks are text blocks wrapped around by strings of 3 backticks. You may check out [this reference](https://github.com/mdx-js/specification) for the specifications of MDX.
+Code blocks are text blocks wrapped around by strings of 3 backticks. You may check out [this reference](https://mdxjs.com/docs/) for the specifications of MDX.
 
 ````md
 ```js