diff --git a/apphub/docs/user.md b/apphub/docs/user.md
index dbd2491c..64e997e7 100755
--- a/apphub/docs/user.md
+++ b/apphub/docs/user.md
@@ -15,4 +15,14 @@ usermod -aG sudo username
 
 #### Can not login when I reinstall my Instance?
 
-Need to clear all cookie at you browser
\ No newline at end of file
+Need to clear all cookie at you browser
+
+#### How to update Media and library?
+
+--channel dev | release
+
+```
+docker exec -it websoft9-apphub bash
+bash /websoft9/script/update_zip.sh --channel dev --package_name "media-latest.zip" --sync_to "/websoft9/media"
+bash /websoft9/script/update_zip.sh --channel dev --package_name "library-latest.zip" --sync_to "/websoft9/library"
+```