What do I do to be able to sell if mother is also on the deed and doesn’t want to sell?

I jointly own my home with my mother. My mother does not live with me and has never paid property taxes. I would like to sell my home and get something that more suits my needs. My mother says that because she’s on the deed, I am not allowed to sell without her approval and says she will not let me sell. Is she allowed to keep me from selling?