diff --git a/.vscode/settings.json b/.vscode/settings.json
index 5fc5c2c..bcd0074 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -43,7 +43,6 @@
         "katex",
         "kunukn",
         "Librewolf",
-        "mhchem",
         "microflash",
         "nixpkgs",
         "nodedotjs",
diff --git a/packages/content/markdown/posts/test post.md b/packages/content/markdown/posts/test post.md
index 72f4bcb..69c6e7f 100644
--- a/packages/content/markdown/posts/test post.md	
+++ b/packages/content/markdown/posts/test post.md	
@@ -152,8 +152,6 @@ Do you remember the first time you pressed <kbd>Ctrl</kbd>+<kbd>C</kbd> in termi
 
 [$KaTeX$](https://katex.org/docs/supported.html) syntax is supported.
 
-using [mhchem](https://mhchem.github.io/MathJax-mhchem) for chemical formula.
-
 ### Inline
 
 $e=mc^2$ is actually $e^2=(mc^2)^2 + (pc)^2$.