diff --git a/app/opengraph-image.js b/app/opengraph-image.js
index d095127..eff3c5f 100644
--- a/app/opengraph-image.js
+++ b/app/opengraph-image.js
@@ -16,6 +16,11 @@ export const contentType = 'image/png'
 const getFont = async () => {
   const res = await fetch(
     new URL('fonts/IBM_Plex_Mono/IBMPlexMono-Regular.woff2', import.meta.url),
+    {
+      headers: {
+        'Content-Type': 'font/woff2',
+      },
+    },
   )
   return await res.arrayBuffer()
 }