If you obtain a new passport or there is a change to your passport information, you must apply for a new travel authorization and pay the associated fees. See What information can I update? for a full listing of information that can be changed after submission of your application.
Prior to submitting an electronic travel authorization application with the required payment information, you can update all application data fields except the passport number, passport issuing country, country of citizenship and date of birth. Once an application is approved, you can still update any one of the following fields:
Address in the U.S.