You can change your e-mail address in your Profile Settings.

  1. Click on your profile icon in the upper right corner and choose Profile Settings. Or go to
  2. Click the Change e-mail link
  3. Enter the new e-mail address and click Save

If you've created an account using Google login, but haven't set a password, you won't be able to change your email until you choose a password.

If you can't change the email address because there's already an account associated with the new email, log out and log in with the new email. If you're not sure what's the password, click on the Forgot password on the log-in page.