diff --git a/video.mjs b/video.mjs
index b5d6fc7..e1f59eb 100644
--- a/video.mjs
+++ b/video.mjs
@@ -45,7 +45,7 @@ export async function createVideo() {
     }
     //run the command ffmpeg -framerate 5 -i %d.png -c:v libx264 -r 30 output.mp4
     return new Promise((resolve, reject) => {
-        exec('ffmpeg -framerate 5 -i images/final/%d.png -c:v libvpx -r 30 out/output.mp4', (err, stdout, stderr) => {
+        exec('ffmpeg -framerate 5 -i images/final/%d.png -c:v libvpx -r 30 out/output.webm', (err, stdout, stderr) => {
             if (err) {
                 reject(err);
                 return;