Update your listing with a new title, add or changes a few pictures, relax your minimun night stays but also your security deposit and per night rate, offer coffee or tea for breakfast and fruit, etc.
The idea is to use the search algorithm by propping your listing up to the top of reults yielded with as many appealing features and refreshed updates as possible. I've noticed that editing the title and changing up photos or adding one or two from time-to-time tends to draw more requests alone, per my stats.
Good luck!