diff --git a/package.json b/package.json
index 82ee1e2..8935881 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@lucide/astro": "^1.27.0",
     "astro": "^7.2.0",
     "hast-util-to-html": "^9.0.5",
-    "katex": "^0.18.1",
+    "katex": "^0.16.47",
     "mdast-util-from-markdown": "^2.0.2",
     "mdast-util-gfm": "^3.1.0",
     "mdast-util-to-hast": "^13.2.0",
diff --git a/src/layouts/BaseLayout.astro b/src/layouts/BaseLayout.astro
index b18ef18..17615bf 100644
--- a/src/layouts/BaseLayout.astro
+++ b/src/layouts/BaseLayout.astro
@@ -30,7 +30,7 @@ const { title, description, image, type, noindex, math, navbarOverlay = false, h
     {siteConfig.comments.provider === 'twikoo' && <link rel="stylesheet" href="https://registry.npmmirror.com/twikoo/1.7.15/files/dist/twikoo.css" data-twikoo-styles transition:persist="twikoo-styles" />}
     <SeoHead title={title} description={description} image={image} type={type} noindex={noindex} />
     {siteConfig.pjax.enabled && <ClientRouter />}
-    {math && <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.18.1/dist/katex.min.css" />}
+    {math && <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.47/dist/katex.min.css" />}
     <script is:inline set:html={appearanceScript}></script>
   </head>
   <body