2008 Chevy Malibu wheel dents

I have two slightly dented aluminum wheels, which are both on the rear now. The dent in each wheel is only about one inch long by 1/8" deep at the edge of the rim. I was told at the tire shop that this may create noticeable vibration, if they were on the front of the car.

My concern now is how to do tire rotaitons in the future? Or should I repair the wheels? Are these small dents repairable, without damaging the wheel further?