Peeing along wall near litter box HELP!

Our 8 month old Sasha pees in certain spots along the wall in the entryway near the litter box. He CAN pee in his box, and never poops outside of the box. I don’t use scented litter anymore, and I clean it at least once a day. I’m getting nervous of smells and am tired of deep cleaning the carpet constantly. Will he grow out of it or should I be worried?? Thank you for any advice!