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bun.sh/docs/guides/install/add-optional.mdx
2025-11-21 14:06:19 -08:00

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---
title: Add an optional dependency
sidebarTitle: Add an optional dependency
mode: center
---
To add an npm package as an optional dependency, use the `--optional` flag.
```sh terminal icon="terminal"
bun add zod --optional
```
---
This will add the package to `optionalDependencies` in `package.json`.
```json package.json icon="file-json"
{
"optionalDependencies": {
"zod": "^3.0.0" // [!code ++]
}
}
```
---
See [Docs > Package manager](/pm/cli/install) for complete documentation of Bun's package manager.