diff --git a/README.md b/README.md
index 72f252f7..4f0cc3a0 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,7 @@ To generate the thumbnails for logos and tag photos, run:
 * `--actors "[name]" "[name]"`: Fetch actor profiles. When no names are specified, actors without existing profiles are scraped
 * `--actors-file [filepath]`: Fetch all scenes for the actors specified in a file using a newline delimiter.
 * `--actors-sources [slug] [slug]`: Scrapers to use for actor profiles. Defaults to config.
+* `--actors-update [time]`: Update actors that don't have any profiles newer than period ("1 month") or date (2020-08-01).
 * `--actors-scenes`: Fetch all scenes for scraped actors. Use with caution, as an actor may have many scenes.
 * `--scene-actors`: Fetch profiles for actors associated with scraped scenes. Use with caution, as scenes may have many actors, each with many profiles.