A 54-year-old man attends your general practice for a routine check. He is a non-smoker with no history of diabetes, kidney disease or cardiovascular disease. Three properly performed blood pressure measurements over three months are 148/92, 150/90 and 146/94 mmHg. Fasting lipids and glucose are normal, and his 5-year absolute cardiovascular disease (CVD) risk, calculated with an Australian risk calculator, is <10%. What is the most appropriate next step in his management?