In order to change your PIN-code, please follow the steps below:

1.) Navigate to the settings menu by tapping on the gear icon in the upper left corner of the screen

2.) Tap on 'Manage Cards', and then tap the wallet for which you wish the change your PIN-code

3.) Tap 'Reset Pin' to change your PIN

4.) The app will prompt you for your current PIN and then ask you to set a new PIN

5.) Tap and hold your card to the back of the phone to complete the process