Your Resume needs to be updated atleast every six months with the new achievements and skill set you have.
I would recommend updating it in your current role or position each time a significant milestone or achievement has been made.
You can update your resume once in a yr with all the initiatives, skills added and promotions that you got.
All the best.
FREE TIP: Don't put your address on your resume. It's not needed and can be a safety issue, especially for women. You only need an email address and phone number.
keeping your résumé and profiles updated covers your flanks in a handful of ways:
In the event of an unexpected job loss, it means you can immediately start hunting for a new position.
It makes you look like even more of an awesome candidate to recruiters and prospective employers who might be lurking around the Internet.
It keeps colleagues appraised of your skills, which is particularly useful if you’re the type who takes on freelancing work on a regular basis.
Whether you're looking for your first job, a better mid-career opportunity, or are ... freshening your resume, update as often as you can