[Home](./index.md) > [bitburner](./bitburner.md) > [Bladeburner](./bitburner.bladeburner.md) > [upgradeSkill](./bitburner.bladeburner.upgradeskill.md) ## Bladeburner.upgradeSkill() method Upgrade skill. Signature: ```typescript upgradeSkill(name: string): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | name | string | | Returns: boolean true if the skill is successfully upgraded, and false otherwise. ## Remarks RAM cost: 4 GB Attempts to upgrade the specified Bladeburner skill. Returns true if the skill is successfully upgraded, and false otherwise.