It’s important to keep your phone number updated to protect your accounts with 2-step verification. Here’s how:

1. From the app's home screen, select More
2. Select Sign-in and security
3. Select 2-step verification
4. Select the edit option for your phone number
5. Enter your new phone number
6. Get a text message or a phone call with your verification code
7. Enter the verification code, then select Complete set up
8. Select Continue