# setup-opa > Setup OPA + Regal Install pinned opa + regal binaries into /usr/local/bin. Pin versions deliberately -- OPA's --schema typechecker and regal's lint rules both evolve and can surface new failures on bumps, so keep CI reproducible. ## Inputs | Input | Required | Default | Description | |---|---|---|---| | `opa-version` | no | `1.16.2` | OPA version (without the leading v). | | `regal-version` | no | `0.34.1` | Regal version (without the leading v). | ## Usage ```yaml - uses: actions/checkout@v6 - uses: FSHTech/github-actions/setup-opa@v1 ```