diff --git a/electron/converter.ts b/electron/converter.ts
index 5440d46..f5aafe6 100644
--- a/electron/converter.ts
+++ b/electron/converter.ts
@@ -18,7 +18,6 @@ const startConverter = async (queue: ConvertQueue): Promise<void> => {
   });
   converter.output(queue.output.path, {
     vcodec: "libx264",
-    format: "yuv420",
     pix_fmt: "yuv420p",
     "b:v": "0",
     crf: "30",
diff --git a/package.json b/package.json
index b13312d..e3540f4 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "niconicomments-convert",
   "private": false,
-  "version": "0.0.18",
+  "version": "0.0.19",
   "type": "commonjs",
   "license": "MIT",
   "main": "build/electron/electron.js",