C.R.S. § 19-4-119

(1) The court has continuing jurisdiction to modify or revoke a judgment or order: (a) For future education and support; and (b) With respect to matters listed in sections 19-4-116 (3) and (4) and 19-4-118 (2); except that a court entering a judgment or order for the payment of a lump sum or the purchase of an annuity under section 19-4-116 (4) may specify that the judgment or order may not be modified or revoked. (2) The court may modify an order of support only in accordance with the provisions of and the standard for modification in section 14-10-122 , C.R.S. (3) The trial court retains jurisdiction to modify an order concerning child support or concerning the allocation of parental rights and responsibilities based on a change in circumstances during the pendency of an appeal.