Jimmy Diaz, Texas prisoner # 1737301, filed a 42 U.S.C. § 1983 complaint against law enforcement officials. The district court denied Diaz’s motion for leave to file a supplemental response to Defendants’ motion for summary judgment and dismissal. Diaz appeals this order. The district court’s docket sheet reflects that Diaz’s § 1983 complaint remains pending.

*164 We must sua sponte examine whether we have jurisdiction to consider the appeal. See Martin v. Halliburton, 618 F.3d 476, 481 (5th Cir. 2010). Federal appellate courts only have jurisdiction over appeals from (1) final orders pursuant to 28 U.S.C. § 1291; (2) orders that are deemed final due to a jurisprudential exception, such as the collateral order doctrine; (3) interlocutory orders specified in 28 U.S.C. § 1292(a); and (4) interlocutory orders that are properly certified for appeal by the district court pursuant to Federal Rule of Civil Procedure 54(b) or § 1292(b). Dardar v. Lafourche Realty Co., 849 F.2d 955, 957 (5th Cir. 1988); Save the Bay, Inc. v. U.S. Army, 639 F.2d 1100, 1102 & n. 3 (5th Cir. 1981). The order denying Diaz’s motion for leave to file a supplemental response to Defendants’ motion for summary judgment and dismissal does not fall within any of these categories.

Accordingly, we lack jurisdiction to consider the appeal, and the appeal is DISMISSED. Diaz’s motion for leave to proceed in forma pauperis on appeal is DENIED.