A method for arranging a drive unit in a revolving door, the drive unit being arranged at a ceiling element of the revolving door and configured to drive a turnstile of the revolving door, includes: arranging a receiving vessel at the underside of the ceiling element so as to form, at an underside of the ceiling element, an installation cavity opening in a direction of an installation space of the turnstile; and inserting a flat-cylindrical, electronically commutated multipole motor into the installation cavity to form the drive unit.