Parking break light staying on in my 1996 geo prizm

In my 96 Prizm, basically a corolla, my parking break is disengaged, and the car seems to be driving fine, but the parking break light on the dash is staying on. For some reason when I do a break and stop at a light/ stop sign, the light turns off, but then starts back up again. If it's too close between stops the light doesn't turn off.

Any ideas?