diff --git a/pkgs/development/python-modules/buildcatrust/default.nix b/pkgs/development/python-modules/buildcatrust/default.nix
new file mode 100644
index 000000000000..9fc0330ad0ba
--- /dev/null
+++ b/pkgs/development/python-modules/buildcatrust/default.nix
@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "buildcatrust";
+  version = "0.1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256:0s0m0fy943dakw9cbd40h46qmrhhgrcp292kppyb34m6y27sbagy";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+  disabledTestPaths = [
+    # Non-hermetic, needs internet access (e.g. attempts to retrieve NSS store).
+    "buildcatrust/tests/test_nonhermetic.py"
+  ];
+
+  pythonImportsCheck = [ "buildcatrust" "buildcatrust.cli" ];
+
+  meta = with lib; {
+    description = "Build SSL/TLS trust stores";
+    homepage = "https://github.com/lukegb/buildcatrust";
+    license = licenses.mit;
+    maintainers = with maintainers; [ lukegb ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9f2cda728b1c..ffa238e9bfa1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -305,6 +305,8 @@ with pkgs;
 
   html5validator = python3Packages.callPackage ../applications/misc/html5validator { };
 
+  buildcatrust = with python3.pkgs; toPythonApplication buildcatrust;
+
   probe-run = callPackage ../development/tools/rust/probe-run {
     inherit (darwin.apple_sdk.frameworks) AppKit IOKit;
   };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 57d37b3a1e77..fdc731c27bd4 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1304,6 +1304,8 @@ in {
 
   build = callPackage ../development/python-modules/build { };
 
+  buildcatrust = callPackage ../development/python-modules/buildcatrust { };
+
   bumps = callPackage ../development/python-modules/bumps { };
 
   bunch = callPackage ../development/python-modules/bunch { };