To change your card on file, go to Settings arrow_forward License & Plan. Click the "Change Card" button and fill out the new card details.
There's no need to remove your old card - it will be automatically replaced with the new one. Note that the last 4 digits of your card are printed on the invoice PDF, which allows you to easily identify which card was used for each charge.
Is your current card expired and you're waiting for a new card? Please reach out to your account manager to postpone the charge of your invoice.