You will need the account owner role to change your email address.
  1. Ensure you have access to your new email address.
  2. Go to Team settings.
  3. Invite your new email address to your team.
  4. Accept the invite from an incognito window or a different browser.
  5. Once the new email address has joined the team, promote it to an owner role.
  6. Remove your old email address from the team.