You can change your password from Settings.

＜Desktop＞

1. Click “Settings” in the upper right corner and “Your name”.

2. Click “Password” and enter “Current password” and “New password”, and then click “Save”

＜Mobile＞

1. Tap “Settings” on footer and “Edit my profile”.

2. Tap “Password”.

3. Enter “Current password” and “New password”, and tap “Save”.