CAR DEPRCIATION OR MILEAGE CHOICE

I have a new car that I purchased in October of 2019.  I usually deduct my mileage for business travel.  This year Turbo Tax suggests that I take the depreciation of the new vehicle for a high deduction.  If I take the depreciation of the car for 2020, can I change it back to mileage deduction for the next tax year(2021)?