Wrong Festival Name

Hello folks! So, tomorrow I'm gonna attend a festival here in my city and as I'm a little bit anxious (haha) I decided to create the setlists before it happens. The thing is that, as I created it, I realized there's a little difference between this year's name to other years' editions (Setlist.fm suggested the name before I could check it, so…), and I wanna know if someone can help me to change it.

This is the link: http://www.setlist.fm/festivals/cultura-inglesa-festival-3bd6b484.html

I wanna change it from “Cultura Inglesa Festival 2017″ to “21º Cultura Inglesa Festival”, so it won't be different from other editions anymore.

Thanks a lot, everybody! :)