[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: CorpUpgradeName): void; ``` ## Parameters

Parameter	Type	Description
upgradeName	[CorpUpgradeName](./bitburner.corpupgradename.md)	Name of the upgrade

**Returns:** void ## Remarks RAM cost: 20 GB