[Home](./index.md) > [@firebase/auth](./auth.md) > [updatePassword](./auth.updatepassword.md) ## updatePassword() function Updates the user's password. Signature: ```typescript export declare function updatePassword(user: User, newPassword: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | user | [User](./auth.user.md) | The user. | | newPassword | string | The new password. | Returns: Promise<void> ## Remarks Important: this is a security sensitive operation that requires the user to have recently signed in. If this requirement isn't met, ask the user to authenticate again and then call [reauthenticateWithCredential()](./auth.reauthenticatewithcredential.md).