diff --git a/pkgs/development/python-modules/hepunits/default.nix b/pkgs/development/python-modules/hepunits/default.nix
new file mode 100644
index 000000000000..9bfd4de36f78
--- /dev/null
+++ b/pkgs/development/python-modules/hepunits/default.nix
@@ -0,0 +1,31 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, setuptools-scm
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "hepunits";
+  version = "2.2.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-6A5hb+8oF/PGbHXcDkHtJjYkiMzgX5Stz977jgXry1g=";
+  };
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  meta = {
+    description = "Units and constants in the HEP system of units";
+    homepage = "https://github.com/scikit-hep/hepunits";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ doronbehar ];
+  };
+}
+
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 783f1866b8f5..525d50b56b3b 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3736,6 +3736,8 @@ in {
     inherit python;
   });
 
+  hepunits = callPackage ../development/python-modules/hepunits { };
+
   herepy = callPackage ../development/python-modules/herepy { };
 
   hetzner = callPackage ../development/python-modules/hetzner { };