<!-- Do not edit this file. It is automatically generated by API Documenter. --> [Home](./index.md) > [bitburner](./bitburner.md) > [Corporation](./bitburner.corporation.md) > [levelUpgrade](./bitburner.corporation.levelupgrade.md) ## Corporation.levelUpgrade() method Level up an upgrade. **Signature:** ```typescript levelUpgrade(upgradeName: string): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | upgradeName | string | Name of the upgrade | **Returns:** void ## Remarks RAM cost: 20 GB