California Code, Code of Civil Procedure - CCP § 405.37

After notice and hearing, for good cause and upon such terms as are just, the court may exonerate or modify any undertaking required by an order issued pursuant to Section 405.33 or 405.34 or pursuant to a stipulation made in lieu of such an order. An order of the court under this section may be made conditional upon the giving of a new undertaking under Section 405.33 or 405.34.