Vercel now caches dependencies for projects using Yarn 2 and newer, reducing install times and improving build performance. Previously, caching was only supported for npm, pnpm, Bun, and Yarn 1.

To disable caching, set the environment variable VERCEL_FORCE_NO_BUILD_CACHE with a value of 1 in your project settings.

If you're using Yarn 4, enable Corepack, as recommended by Yarn.

Visit the Build Cache documentation to learn more.