diff --git a/pkgs/servers/monitoring/prometheus/haproxy-exporter.nix b/pkgs/servers/monitoring/prometheus/haproxy-exporter.nix
index 6a42297d502..6af1dbffbc8 100644
--- a/pkgs/servers/monitoring/prometheus/haproxy-exporter.nix
+++ b/pkgs/servers/monitoring/prometheus/haproxy-exporter.nix
@@ -2,16 +2,15 @@
 
 buildGoPackage rec {
   pname = "haproxy_exporter";
-  version = "0.8.0";
-  rev = "v${version}";
+  version = "0.12.0";
 
   goPackagePath = "github.com/prometheus/haproxy_exporter";
 
   src = fetchFromGitHub {
-    inherit rev;
+    rev = "v${version}";
     owner = "prometheus";
     repo = "haproxy_exporter";
-    sha256 = "0gx8pq67w71ch3g3c77xaz39msrd9graizc6d3shwabdjx35yc6q";
+    sha256 = "09aqm2zqimn6w10p1nhnpjcigm299b31xfrq8ma0d7z4v9p2y9dn";
   };
 
   meta = with lib; {