As disruption is shifting global systems, peacebuilders are poised to build smarter, broader, and more lasting solutions. This article outlines three key adaptations: integrating peacebuilding across sectors, attracting new forms of capital by making the business case for peace, and redefining success through a positive peace approach. If we want peace to scale and endure, we need to change what we do, how we fund it, and how we measure impact.