diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index e158bf7..c596616 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -62,7 +62,7 @@ const config = {
     /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
     ({
       // Replace with your project's social card
-      image: 'img/social-card.jpg',
+      image: 'img/social-card.png',
       navbar: {
         title: 'Tianji',
         logo: {