How can I update my database password

Control Panel V5 > Hosting Control Panel > Databases
When you forget your database password or when you want to change your database password, you can follow the below steps to reset your database password.
1. Login to your hosting control panel, click "DATABASES" from the top menu
2. Baside your database name, you will click the "Change Password" button as shown below, click it, you can set a new password for your database