Simply go to your Settings >> My Account and click on "change password" at the bottom:
Please note, if you are a Google Apps user, you do not have a password with Nimble.
The account admin can also disable password login and sign in using your Google or Microsoft account instead:
For this, head to the Settings > Manage Users tab and check the box next to “Disable login with password” for the entire team:
If you have any questions, please write us at care@nimble.com, initiate a chat from this FAQ, or join one of our Nimble Onboarding and Best Practices sessions, held every weekday at 9 AM PT.