diff --git a/pkgs/development/python-modules/pytm/default.nix b/pkgs/development/python-modules/pytm/default.nix
new file mode 100644
index 000000000000..abae39aff062
--- /dev/null
+++ b/pkgs/development/python-modules/pytm/default.nix
@@ -0,0 +1,34 @@
+{ buildPythonPackage
+, fetchPypi
+, fetchFromGitHub
+, lib
+, pythonOlder
+, pydal
+, graphviz
+, pandoc
+, plantuml
+}:
+
+buildPythonPackage rec {
+  pname = "pytm";
+  version = "1.2.0";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "izar";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1bx4s9a5kdyr2xvpw0smmh7zi9w38891yfqzdj1bmnsjl57x6qrg";
+  };
+
+  propagatedBuildInputs = [ pydal graphviz pandoc plantuml ];
+
+  pythonImportsCheck = [ "pytm" ];
+
+  meta = with lib; {
+    description = "A Pythonic framework for threat modeling";
+    homepage = "https://owasp.org/www-project-pytm/";
+    license = with licenses; [ capec mit ];
+    maintainers = with maintainers; [ wamserma ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8b25da7fad7f..5fbb9f5bd7e5 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7624,6 +7624,8 @@ in {
 
   pytimeparse = callPackage ../development/python-modules/pytimeparse { };
 
+  pytm = callPackage ../development/python-modules/pytm { };
+
   pytmx = callPackage ../development/python-modules/pytmx { };
 
   pytoml = callPackage ../development/python-modules/pytoml { };