If you're looking to change your password, you can do it by going in your Homebase. Click on your name at the top right and then on Edit my account. 

After clicking on Edit my account, you have to click on the Password section, right under the Locale section.

You just need to put your new password, confirm it and don't forget to save!

IMPORTANT! You need to have 3 of the following 4 choices: lowercase (ex. a), uppercase (ex. C), number (ex. 8) or symbol (ex. $)