Phillip David Haskett appeals the dismissal of his complaint pursuant to Federal Rule of Civil Procedure 12(b)(6) for failure to state a claim upon which relief can be granted. Both Haskett and the appellees have filed their opening briefs, but further briefing was suspended when Haskett’s motion for leave to proceed in forma pauperis (IFP) on appeal was submitted to the court. The IFP motion is granted, and we dispense with further briefing.

Haskett has waived review of the dismissal of his claims for a declaratory judgment and respondeat superior by failing to challenge their dismissal on appeal. See Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987). This portion of the district court’s judgment is affirmed.

The district court erred in dismissing his claim for failure to hire under the Age Discrimination in Employment Act, 29 U.S.C. § 621 et seq. See Leal v. McHugh, 731 F.3d 405, 410 (5th Cir. 2013). Haskett’s allegations, liberally construed, plausibly permit the reasonable inferences that he applied for landmen positions for which he was qualified, younger persons were hired to fill these positions, and the defendants did not hire him because of his age. See Ashcroft v. Iqbal, 556 U.S. 662, 678, 129 S.Ct. 1937, 173 L.Ed.2d 868 (2009). This portion of the district court’s judgment is vacated.

IFP motion GRANTED. AFFIRMED in part; VACATED in part; and REMANDED for further proceedings consistent with this opinion.