Launch the application
Click on the hamburger button from the top bar.
Now login with your email id, then select my profile from the hamburger menu.
From the profile page at the right corner, select edit profile.
You can update your details like name, date of birth and password.
Click on set password button at the right side of the password field to update your password.
If you already have a password, you will see the “change” button where you can update your password.