Since uscan cannot download the new version, use the following sequence,

(change 0.0.8 to required version)
`
gem fetch -v 0.0.8 gitlab-mail_room
gem2tgz gitlab-mail_room-0.0.8.gem
mv gitlab-mail-room-0.0.8.tar.gz ruby-mail-room_0.10.0+really0.0.8.orig.tar.gz
