diff --git a/index.js b/index.js
index bf721c5..81862e3 100644
--- a/index.js
+++ b/index.js
@@ -10,7 +10,7 @@ Bun.serve({
                 let path = "tmp/" + Bun.randomUUIDv7();
                 let data = await req.json();
                 await $`yt-dlp '${data.url}' -q -o "${path}.mp4"`
-                await $`ffmpeg -i ${path}.mp4 -map_metadata -1 -map 0 -map -0:v -b:a 64k ${path}.ogg`
+                await $`ffmpeg -i ${path}.mp4 -map_metadata -1 -map 0 -map -0:v -c:a libopus -b:a 64k ${path}.ogg`
                 await (Bun.file(path + ".mp4")).delete();
                 let response = new Response(await Bun.file(path + ".ogg").bytes(), {
                     headers: {