Missouri inmate Mark Hammett appeals the district court’s 1 dismissal, without prejudice, of his 42 U.S.C. § 1983 action for failure to exhaust administrative remedies. Given that Hammett submitted with his complaint a prison official’s June 2010 Appeal Response denying Hammett’s administrative appeal because he did not timely commence the grievance process, we conclude that dismissal was warranted. See 42 U.S.C. § 1997e(a) (exhaustion of *685 administrative remedies must precede prisoner’s filing of suit); Woodford v. Ngo, 548 U.S. 81, 90-91, 126 S.Ct. 2378, 165 L.Ed.2d 368 (2006) (proper exhaustion demands compliance with agency’s deadlines and other critical rules). Accordingly, we affirm. See 8th Cir. R. 47B.