diff --git a/pkgs/development/python-modules/pgpy-dtc/default.nix b/pkgs/development/python-modules/pgpy-dtc/default.nix
new file mode 100644
index 000000000000..f59c3b01c949
--- /dev/null
+++ b/pkgs/development/python-modules/pgpy-dtc/default.nix
@@ -0,0 +1,44 @@
+{
+  lib,
+  pythonOlder,
+  fetchFromGitHub,
+  buildPythonPackage,
+  setuptools,
+  pyasn1,
+  cryptography,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "pgpy-dtc";
+  version = "0.1.1";
+  pyproject = true;
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "DigitalTrustCenter";
+    repo = "PGPy_dtc";
+    tag = version;
+    hash = "sha256-0zv2gtgp/iGDQescaDpng1gqbgjv7iXFvtwEt3YIPy4=";
+  };
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    pyasn1
+    cryptography
+  ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "pgpy_dtc" ];
+
+  meta = {
+    homepage = "https://github.com/DigitalTrustCenter/PGPy_dtc";
+    changelog = "https://github.com/DigitalTrustCenter/PGPy_dtc/releases/tag/${src.tag}";
+    description = "Pretty Good Privacy for Python";
+    license = lib.licenses.eupl12;
+    maintainers = with lib.maintainers; [ networkexception ];
+  };
+}
diff --git a/pkgs/development/python-modules/sectxt/default.nix b/pkgs/development/python-modules/sectxt/default.nix
new file mode 100644
index 000000000000..186ffe143690
--- /dev/null
+++ b/pkgs/development/python-modules/sectxt/default.nix
@@ -0,0 +1,61 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  pythonOlder,
+  requests,
+  python-dateutil,
+  langcodes,
+  pgpy-dtc,
+  validators,
+  requests-mock,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "sectxt";
+  version = "0.9.6";
+  pyproject = true;
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "DigitalTrustCenter";
+    repo = "sectxt";
+    tag = version;
+    hash = "sha256-49YxhcOpi1wofKMRuNxt8esBtfaSoBrGu+yBCRFWZYY=";
+  };
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    requests
+    python-dateutil
+    langcodes
+    pgpy-dtc
+    validators
+  ];
+
+  pythonRelaxDeps = [
+    "requests"
+    "langcodes"
+    "pgpy-dtc"
+    "validators"
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+    requests-mock
+  ];
+
+  pythonImportsCheck = [ "sectxt" ];
+
+  meta = {
+    homepage = "https://github.com/DigitalTrustCenter/sectxt";
+    changelog = "https://github.com/DigitalTrustCenter/sectxt/releases/tag/${src.tag}";
+    description = "security.txt parser and validator";
+    license = lib.licenses.eupl12;
+    maintainers = with lib.maintainers; [ networkexception ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index b98d245a8297..d975113c9f19 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10368,6 +10368,8 @@ self: super: with self; {
 
   pgpy = callPackage ../development/python-modules/pgpy { };
 
+  pgpy-dtc = callPackage ../development/python-modules/pgpy-dtc { };
+
   pgsanity = callPackage ../development/python-modules/pgsanity { };
 
   pgspecial = callPackage ../development/python-modules/pgspecial { };
@@ -14769,6 +14771,8 @@ self: super: with self; {
 
   sectools = callPackage ../development/python-modules/sectools { };
 
+  sectxt = callPackage ../development/python-modules/sectxt { };
+
   seedir = callPackage ../development/python-modules/seedir { };
 
   seekpath = callPackage ../development/python-modules/seekpath { };