diff --git a/README.md b/README.md
index 5c31878..d7807b9 100644
--- a/README.md
+++ b/README.md
@@ -87,22 +87,23 @@
 To run in CLI mode, pass on any arguments
 
 ```
-usage: sticker-convert [-h] [--version] [--no-confirm] [--input-dir INPUT_DIR]
-                       [--download-auto DOWNLOAD_AUTO | --download-signal DOWNLOAD_SIGNAL | --download-telegram DOWNLOAD_TELEGRAM | --download-line DOWNLOAD_LINE | --download-kakao DOWNLOAD_KAKAO]
-                       [--output-dir OUTPUT_DIR] [--author AUTHOR] [--title TITLE]
-                       [--export-signal | --export-telegram | --export-whatsapp | --export-imessage] [--no-compress]
-                       [--preset {auto,signal,telegram,whatsapp,line,kakao,imessage_small,imessage_medium,imessage_large,custom}]
-                       [--steps STEPS] [--processes PROCESSES] [--fps-min FPS_MIN] [--fps-max FPS_MAX] [--res-min RES_MIN]
-                       [--res-max RES_MAX] [--res-w-min RES_W_MIN] [--res-w-max RES_W_MAX] [--res-h-min RES_H_MIN]
-                       [--res-h-max RES_H_MAX] [--quality-min QUALITY_MIN] [--quality-max QUALITY_MAX] [--color-min COLOR_MIN]
-                       [--color-max COLOR_MAX] [--duration-min DURATION_MIN] [--duration-max DURATION_MAX]
-                       [--vid-size-max VID_SIZE_MAX] [--img-size-max IMG_SIZE_MAX] [--vid-format VID_FORMAT]
-                       [--img-format IMG_FORMAT] [--fake-vid] [--cache-dir CACHE_DIR] [--default-emoji DEFAULT_EMOJI]
-                       [--signal-uuid SIGNAL_UUID] [--signal-password SIGNAL_PASSWORD] [--signal-get-auth]
-                       [--telegram-token TELEGRAM_TOKEN] [--telegram-userid TELEGRAM_USERID] [--kakao-auth-token KAKAO_AUTH_TOKEN]
-                       [--kakao-get-auth] [--kakao-username KAKAO_USERNAME] [--kakao-password KAKAO_PASSWORD]
-                       [--kakao-country-code KAKAO_COUNTRY_CODE] [--kakao-phone-number KAKAO_PHONE_NUMBER] [--line-get-auth]
-                       [--line-cookies LINE_COOKIES] [--save-cred SAVE_CRED]
+usage: sticker-convert.py [-h] [--version] [--no-confirm] [--input-dir INPUT_DIR]
+                          [--download-auto DOWNLOAD_AUTO | --download-signal DOWNLOAD_SIGNAL | --download-telegram DOWNLOAD_TELEGRAM | --download-line DOWNLOAD_LINE | --download-kakao DOWNLOAD_KAKAO]
+                          [--output-dir OUTPUT_DIR] [--author AUTHOR] [--title TITLE]
+                          [--export-signal | --export-telegram | --export-whatsapp | --export-imessage] [--no-compress]
+                          [--preset {auto,signal,telegram,whatsapp,line,kakao,imessage_small,imessage_medium,imessage_large,custom}]
+                          [--steps STEPS] [--processes PROCESSES] [--fps-min FPS_MIN] [--fps-max FPS_MAX] [--res-min RES_MIN]
+                          [--res-max RES_MAX] [--res-w-min RES_W_MIN] [--res-w-max RES_W_MAX] [--res-h-min RES_H_MIN]
+                          [--res-h-max RES_H_MAX] [--quality-min QUALITY_MIN] [--quality-max QUALITY_MAX] [--color-min COLOR_MIN]
+                          [--color-max COLOR_MAX] [--duration-min DURATION_MIN] [--duration-max DURATION_MAX]
+                          [--vid-size-max VID_SIZE_MAX] [--img-size-max IMG_SIZE_MAX] [--vid-format VID_FORMAT]
+                          [--img-format IMG_FORMAT] [--fake-vid] [--scale-filter SCALE_FILTER] [--cache-dir CACHE_DIR]
+                          [--default-emoji DEFAULT_EMOJI] [--signal-uuid SIGNAL_UUID] [--signal-password SIGNAL_PASSWORD]
+                          [--signal-get-auth] [--telegram-token TELEGRAM_TOKEN] [--telegram-userid TELEGRAM_USERID]
+                          [--kakao-auth-token KAKAO_AUTH_TOKEN] [--kakao-get-auth] [--kakao-username KAKAO_USERNAME]
+                          [--kakao-password KAKAO_PASSWORD] [--kakao-country-code KAKAO_COUNTRY_CODE]
+                          [--kakao-phone-number KAKAO_PHONE_NUMBER] [--line-get-auth] [--line-cookies LINE_COOKIES]
+                          [--save-cred SAVE_CRED]
 
 CLI for stickers-convert
 
@@ -187,6 +188,12 @@ Compression options:
                         Useful if:
                         (1) Size limit for video is larger than image;
                         (2) Mix image and video into same pack.
+  --scale-filter SCALE_FILTER
+                        Set scale filter. Default as lanczos. Valid options are:
+                        - nearest = Use nearest neighbour (Suitable for pixel art)
+                        - bilnear = linear interpolation
+                        - bicubic = Cubic spline interpolation
+                        - lanczos = A high-quality downsampling filter
   --cache-dir CACHE_DIR
                         Set custom cache directory.
                         Useful for debugging, or speed up conversion if cache_dir is on RAM disk.