Few workplaces stay the same. Sooner or later, you will bring in new equipment, substances and procedures that could lead to new hazards. So it makes sense to review what you are doing on an ongoing basis.
Look at your risk assessment again:
Have there been any changes?
Are there improvements you still need to make?
Have your workers spotted a problem?
Have you learnt anything from accidents or near misses?
Make sure your risk assessment stays up to date.
When you are running a business it's all too easy to forget about reviewing your risk assessment - until something has gone wrong and it's too late. Why not set a review date for this risk assessment now? Write it down and note it in your diary as an annual event.