If you are able to sign-in and simply want to change your password, navigate to My Profile and update the password on the screen.
If you can't sign in and need to reset your password, click the Forgot your Password link on the sign in page. You will be asked to enter your email address to proceed with the reset.
The password requirements are as follows:
Enter at least 8 characters
Enter at least 1 number
Enter at least 1 uppercase letter
Enter at least 1 lowercase letter
Enter at least 1 of @#%^_+=
Please note that the special character(s) used must be from the list above and cannot be any other.