diff --git a/pkgs/development/python-modules/elkm1-lib/default.nix b/pkgs/development/python-modules/elkm1-lib/default.nix
new file mode 100644
index 000000000000..05625f928396
--- /dev/null
+++ b/pkgs/development/python-modules/elkm1-lib/default.nix
@@ -0,0 +1,56 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, fetchpatch
+, poetry-core
+, pyserial-asyncio
+, pytest-asyncio
+, pytestCheckHook
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "elkm1-lib";
+  version = "1.0.0";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "gwww";
+    repo = "elkm1";
+    rev = version;
+    sha256 = "04xidix6l5d9rqfwp6cmj6wvais04nlvz5ynp0zwgyjp9sh2nhp6";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    pyserial-asyncio
+  ];
+
+  checkInputs = [
+    pytest-asyncio
+    pytestCheckHook
+  ];
+
+  patches = [
+    # Switch to poetry-core, https://github.com/gwww/elkm1/pull/45
+    (fetchpatch {
+      name = "switch-to-poetry-core.patch";
+      url = "https://github.com/gwww/elkm1/commit/807a17268498298908bf82af4933b158b37c8f32.patch";
+      sha256 = "1539g8wsxppqj6dm6w81ps05frb8vrfaxahxn2cqs76zdhvly3p9";
+    })
+  ];
+
+  pythonImportsCheck = [ "elkm1_lib" ];
+
+  meta = with lib; {
+    description = "Python module for interacting with ElkM1 alarm/automation panel";
+    homepage = "https://github.com/gwww/elkm1";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 0f5dc551e472..4485a6a4b922 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2328,6 +2328,8 @@ in {
 
   elgato = callPackage ../development/python-modules/elgato { };
 
+  elkm1-lib = callPackage ../development/python-modules/elkm1-lib { };
+
   elasticsearch = callPackage ../development/python-modules/elasticsearch { };
 
   elasticsearch-dsl = callPackage ../development/python-modules/elasticsearch-dsl { };