diff --git a/pkgs/development/python-modules/genson/default.nix b/pkgs/development/python-modules/genson/default.nix
new file mode 100644
index 000000000000..40643f85e07b
--- /dev/null
+++ b/pkgs/development/python-modules/genson/default.nix
@@ -0,0 +1,42 @@
+{
+  buildPythonPackage,
+  coverage,
+  fetchPypi,
+  jsonschema,
+  lib,
+  pytestCheckHook,
+  setuptools,
+}:
+
+buildPythonPackage rec {
+  pname = "genson";
+  version = "1.3.0";
+  pyproject = true;
+
+  # Using Python repository source due to missing genson.schema in setup tools.
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-4C25rC4/0p5ltShvcTV2LizYqYZTfAdbBvxfFRcwjjc=";
+  };
+
+  build-system = [ setuptools ];
+
+  nativeCheckInputs = [
+    jsonschema
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    "test_no_input"
+  ];
+
+  pythonImportsCheck = [ "genson" ];
+
+  meta = {
+    description = "GenSON a JSON Schema generator built in Python";
+    homepage = "https://github.com/wolverdude/GenSON";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ tochiaha ];
+    mainProgram = "genson";
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index c7b19bb4e7c2..ae0bddacc604 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5138,6 +5138,8 @@ self: super: with self; {
 
   gensim = callPackage ../development/python-modules/gensim { };
 
+  genson = callPackage ../development/python-modules/genson { };
+
   gentools = callPackage ../development/python-modules/gentools { };
 
   genzshcomp = callPackage ../development/python-modules/genzshcomp { };