Yes, CPL holders need to renew their license periodically. The renewal process usually involves maintaining a valid medical certificate and completing certain flight hours. Additionally, pilots need to pass regular medical exams to ensure they remain physically fit to fly. The renewal period may vary by country, but it’s typically done every 1-5 years, depending on age and health. It's important to stay up-to-date with any additional requirements set by the aviation authority to keep the license valid.