Christopher Curtis, Texas prisoner # 1094686, appeals the district court’s dis *198 missal of his 42 U.S.C. § 1983 suit against Texas Department of Criminal Justice employees Assistant Warden Williams H. Jones, Major Charles R. Horsley, Sergeant Krista M. Vasquez, Correctional Officer Jose A. Armendariz, and Correctional Officer Desmond Barrera. See 28 U.S.C. §§ 1915(3)(2), 1915A. According to Curtis, the defendants had failed to protect him in violation of the Eighth Amendment. Curtis’s allegations as to how the defendants did so, however, have changed repeatedly. In the district court, Curtis asserted that Vasquez orchestrated an antagonistic relationship between him and another inmate which resulted in a fight in which Curtis was injured. He now asserts a more generalized scheme against him by several of the defendants, but particularly Armen-dariz, of which the fight was evidence rather than the result. Curtis’s vague allegations, contradicted by other evidence in the record and shifting as Curtis tries to evade dismissal, are “wholly incredible” and thus frivolous. See Denton v. Hernandez, 504 U.S. 25, 32-33, 112 S.Ct. 1728, 118 L.Ed.2d 340 (1992). The district court acted within its discretion in dismissing the complaint as frivolous, and its judgment is AFFIRMED. See Rogers v. Boatright, 709 F.3d 403, 407 (5th Cir. 2013).