diff --git a/video-gen-api/.env b/video-gen-api/.env
index f2683a13..508183af 100644
--- a/video-gen-api/.env
+++ b/video-gen-api/.env
@@ -52,6 +52,6 @@ RESOURCE_SIGN_ARG_SIGNATURE=sign
 FFMPEG_BIN=/usr/bin/ffmpeg
 VIDEO_COVER_SEEK_TIME=00:00:01
 VIDEO_COVER_FALLBACK_SEEK_TIME=00:00:00
-VIDEO_COVER_WIDTH=720
+VIDEO_COVER_WIDTH=600
 VIDEO_COVER_TIMEOUT_SECONDS=15
-VIDEO_COVER_FORMAT=jpg
\ No newline at end of file
+VIDEO_COVER_FORMAT=png
\ No newline at end of file