diff --git a/public/thumbnail.png b/public/thumbnail.png
new file mode 100644
index 0000000..57fd8bb
Binary files /dev/null and b/public/thumbnail.png differ
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 1dcc375..342c4e5 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -13,6 +13,9 @@ export const metadata: Metadata = {
   icons: {
     icon: "/favicon.svg",
   },
+  openGraph: {
+    images: "/thumbnail.png",
+  },
 };
 
 export default function RootLayout({ children }: { children: React.ReactNode }) {