diff --git a/.env.example b/.env.example
index f0ecfee..68ae786 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,5 @@
 FFMPEG=C://path
-FFMPEG_PARAMS='-c:v av1_nvenc -c:a copy -c:s copy -map 0 -strict experimental -preset p7 -tune hq -multipass fullres -rc vbr'
+FFMPEG_PARAMS='-c:v av1_nvenc -c:a copy -c:s copy -map 0 -strict experimental -preset p7 -tune hq -multipass fullres -rc vbr -vf format=yuv420p'
 WORKDIR=D://path
 SOURCEDIR=E://path
 OUTPUTDIR=F://path
\ No newline at end of file