diff --git a/mods/haproxy.nix b/mods/haproxy.nix
index 0e36dad..c3ba102 100644
--- a/mods/haproxy.nix
+++ b/mods/haproxy.nix
@@ -15,6 +15,7 @@ rec {
         url = "https://www.haproxy.org/download/${prev.lib.versions.majorMinor version}/src/${old.pname}-${version}.tar.gz";
       };
       buildInputs = old.buildInputs ++ (if pre3 then oldDeps else [ ]);
+      buildFlags = old.buildFlags ++ (if pre3 then [ "EXTRA_OBJS=contrib/prometheus-exporter/service-prometheus.o" ] else [ ]);
     });
   haproxy-2-2-23 = haproxy-pin {
     version = "2.2.23";
diff --git a/pins/jpetrucciani.json b/pins/jpetrucciani.json
index 1e56ef9..0c3312f 100644
--- a/pins/jpetrucciani.json
+++ b/pins/jpetrucciani.json
@@ -1,5 +1,5 @@
 {
-  "date": "2024-07-31",
-  "rev": "f2e07a344880dca88a24873abbe10245426e2760",
-  "sha256": "0pl1m4a3l4s66b87blxn8k60nbylr294wyf56ngbqh60cakndnmz"
+  "date": "2024-08-21",
+  "rev": "9cf17e9a8b9f9202408b865356cba709835641ba",
+  "sha256": "05gl9w2ik5a10ccs70d3qqxrvbkg2l9y0hkrb3g8hhchq3078msl"
 }
diff --git a/pins/nixpkgs.json b/pins/nixpkgs.json
index a739d0f..89c95e2 100644
--- a/pins/nixpkgs.json
+++ b/pins/nixpkgs.json
@@ -1,5 +1,5 @@
 {
-  "date": "2024-07-31",
-  "rev": "52ec9ac3b12395ad677e8b62106f0b98c1f8569d",
-  "sha256": "1aabz2zbbf2l6b85v04cc64ff8hfp09g3hnj41iq45kcpb9r3qmx"
+  "date": "2024-08-21",
+  "rev": "8a3354191c0d7144db9756a74755672387b702ba",
+  "sha256": "0awagdjzv2fsy5v7a0wxz1hd642gsglib2gk4lnqm0iybly7kf0s"
 }