brick

Hello- Seeking some advice or suggestions. I've completely stripped down a small bedroom in my house, revealing the raw brick that lay hidden behind the walls. As I proceed with the project, which involves insulating and adding new drywall, I would greatly appreciate a recommendation regarding...

I have a junction box that is screwed into the outside of a brick wall, but the two screws going into the brick are loose. Is there a preferred way to tighten this thing up (replace screws with bigger screws? some kind of adhesive behind the box to hold it to the brick?)? Thanks, Mitch