diff --git a/api/export-adapter.ts b/api/export-adapter.ts
index 1dd406c..b1e0501 100644
--- a/api/export-adapter.ts
+++ b/api/export-adapter.ts
@@ -328,7 +328,7 @@ async function buildVideoFlowFFmpegCommand(
   args.push('-map', '[outv]', '-map', '[outa]');
 
   // 编码设置
-  args.push('-c:v', 'libx264');
+  args.push('-c:v', 'h264');
   args.push('-c:a', 'aac');
   args.push('-preset', 'medium');