---
url: /reference/OutputOptions.dynamicImportInCjs.md
---
# dynamicImportInCjs

* **Type**: `boolean`
* **Optional**

Whether to keep external dynamic imports as `import(...)` expressions in CommonJS output.

If set to `false`, external dynamic imports will be rewritten to use `require(...)` calls.
This may be necessary to support environments that do not support dynamic `import()` in CommonJS modules like old Node.js versions.

## Default

```ts
true
```