Trunk rattling, trunk lid hook is loose and rattles in the lock

Hey guys... what is the easiest way to 'tighten up' the trunk? I can push down on it and it will move about a 1/4 inch down. Trunk is all lined up but it does rattle on me. I figured that the rattling is coming from the trunk lock and the trunk hook rattling together... what is the correct way to solve this?
Thanks.

You can adjust the lock receiver assembly by loosening the bolts that attach it to the car.