Homero Martinez, federal prisoner # 45120-177, moves for a certificate of appealability (COA) to appeal the denial of his motion to amend his 28 U.S.C. § 2255 motion, which had been denied approximately ten months earlier. As Martinez is not seeking to appeal from the final order *154 in a habeas proceeding, he does not need a COA. See 28 U.S.C. § 2253(c)(1). A COA is therefore DENIED as unnecessary. See id.

Once a final judgment has been entered, a plaintiff may seek to amend only by appealing or by seeking to alter or amend the judgment pursuant to Federal Rule of Civil Procedure 59 or 60. See, e.g., Rosenzweig v. Azurix Corp., 332 F.3d 854, 864 (5th Cir. 2003). Martinez’s motion to amend pursuant to Federal Rule of Civil Procedure 15, which was filed well after the entry of the final judgment denying his § 2255 motion, was a “meaningless, unauthorized motion” over which the district court lacked jurisdiction. See United States v. Early, 27 F.3d 140, 142 (5th Cir. 1994). Because Martinez has appealed from the denial of unauthorized motion, we AFFIRM the district court’s ruling.