1. Click on Settings on the left hand side menu.
2. Click on Account Settings.
3. Click on Edit Password.
4. You will be redirected to a Reset Password page, enter your current email address.
5. A password reset link was sent to your email, open the email and click on the password reset link.
6. Enter your new password, then click on reset password.
7. When the password has been updated, click on Log in here.
8. Click on Log in with Email, then enter your email address and the new password.
9. Now your account's email address has been updated to the new one.