Will laser hair removal affect a dark mole? (Photo)

I have a dark mole placed near my upper lip (I've had it all my life, it's a family trait). I recently had my first session of laser hair removal for my upper lip.The next day I noticed a scab on it. I called the office and they said when the scab fell off it should be fine. The scab fell off 3 days later and the mole has gone from a dark brown/black to a light brown. When it fully heals should I expect it to go back to normal? Is this normal or a mistake on the medical spa?