[Home](./index.md) > [bitburner](./bitburner.md) > [Corporation](./bitburner.corporation.md) > [hasUnlockUpgrade](./bitburner.corporation.hasunlockupgrade.md) ## Corporation.hasUnlockUpgrade() method Check if you have a one time unlockable upgrade Signature: ```typescript hasUnlockUpgrade(upgradeName: string): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | upgradeName | string | Name of the upgrade | Returns: boolean true if unlocked and false if not