Donovan Johnson, Mississippi prisoner # K8179, appeals the summary judgment *731 dismissal of his § 1983 complaint alleging that his Fourth Amendment rights were violated when police searched his home on January 23, 2008, without his permission or a search warrant.

For the first time on appeal, Johnson asserts claims based upon ineffective assistance of counsel as well as violations of his equal protection rights, his Fifth Amendment rights, and several provisions of Mississippi law. This court declines to consider these claims. See Jennings v. Owens, 602 F.3d 652, 657 n. 7 (5th Cir. 2010).

Johnson does not challenge the district court’s holding that, to the extent that he attempts to prove an alibi for the time during which he was convicted of selling cocaine, it is barred under Heck v. Humphrey, 512 U.S. 477, 486-87, 114 S.Ct. 2364, 129 L.Ed.2d 383 (1994). Accordingly, he has waived any challenge to that holding. See Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987).

With regard to the dismissal of his substantive claim that no search warrant had been issued, we affirm on the alternative ground that this claim, too, is barred by Heck because, by Johnson’s own admissions, it necessarily challenges the validity of the convictions for which he is currently incarcerated. See Heck, 512 U.S. at 486-87, 114 S.Ct. 2364; United States v. McSween, 53 F.3d 684, 687 n. 3 (5th Cir. 1995). Johnson’s motion for appointment is denied.

AFFIRMED; MOTION DENIED.