A 58-year-old man with a 10-year history of type 2 diabetes mellitus and microalbuminuria is seen in your family practice. He is on ramipril 10 mg daily, metformin and an SGLT2 inhibitor. His repeated properly measured office blood pressures over the past 3 months average 138/84 mm Hg. He feels well. What is the most appropriate next step in managing his blood pressure?