That should not be occurring, as the Driver Updater should compare the release date of the installed driver to the proposed driver and determine that it is not greater.
Could you please contact our support team directly, via the Contact Us form located here: https://support.piriform.com/hc/en-us/requests/new?ticket_form_id=86507 or by emailing support@ccleaner.com so that we can get some logs that will help in narrowing this down so it can be corrected?