diff --git a/README.md b/README.md
index b8d7f49..c709ea4 100644
--- a/README.md
+++ b/README.md
@@ -186,6 +186,8 @@ options:
   --keep-audio                                             keep original audio
   --keep-frames                                            keep temporary frames
   --many-faces                                             process every face
+  --both-faces                                             use two faces in source image
+  --flip-faces                                             flip two faces in source image from right to
   --video-encoder {libx264,libx265,libvpx-vp9}             adjust output video encoder
   --video-quality [0-51]                                   adjust output video quality
   --max-memory MAX_MEMORY                                  maximum amount of RAM in GB