Norton and Mac Operating system Problem

Today I am receiving this alert message on my Mac operating system.
It asks me to update Mac operating system or download some latest version of Mac operating system.
When I do all the steps, still the error can’t be removed.
Can you provide me a better idea about this error.

Norton Utilities
Norton Utilities has detected a new version of Mac OS X. You may need to run update your installed Norton Utilities or Norton systemWorks Components.
Please check www.symantec.com/mac.
Don’t show this alert again.
OK
