SEV-3: reported, blocks only with --strict
Your deploys are not repeatable
What goes wrong
A dependency updates itself on the next deploy and production breaks with no code change.
How to fix it
Commit your lockfile: package-lock.json, pnpm-lock.yaml, yarn.lock or bun.lockb.
Check your app
npx sigshipRun it in your project. It reports this check as no-lockfile, along with 16 others. Nothing leaves your machine.