diff --git a/pkgs/development/ocaml-modules/httpun/default.nix b/pkgs/development/ocaml-modules/httpun/default.nix
new file mode 100644
index 000000000000..f45ffe5eca2e
--- /dev/null
+++ b/pkgs/development/ocaml-modules/httpun/default.nix
@@ -0,0 +1,22 @@
+{ buildDunePackage
+, httpun-types
+, angstrom
+, bigstringaf
+, faraday
+, alcotest
+}:
+
+buildDunePackage {
+  pname = "httpun";
+
+  inherit (httpun-types) src version;
+
+  propagatedBuildInputs = [ angstrom bigstringaf faraday httpun-types ];
+
+  doCheck = true;
+  checkInputs = [ alcotest ];
+
+  meta = httpun-types.meta // {
+    description = "A high-performance, memory-efficient, and scalable HTTP library for OCaml";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 61429ca4bfaf..c3c71efa41e0 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -691,6 +691,8 @@ let
 
     httpaf-lwt-unix = callPackage ../development/ocaml-modules/httpaf/lwt-unix.nix { };
 
+    httpun = callPackage ../development/ocaml-modules/httpun { };
+
     httpun-types = callPackage ../development/ocaml-modules/httpun/types.nix { };
 
     hxd = callPackage ../development/ocaml-modules/hxd { };