diff --git a/pkgs/development/python-modules/hmmlearn/default.nix b/pkgs/development/python-modules/hmmlearn/default.nix
index 153c582b7cf0..ea39c4324566 100644
--- a/pkgs/development/python-modules/hmmlearn/default.nix
+++ b/pkgs/development/python-modules/hmmlearn/default.nix
@@ -1,27 +1,55 @@
-{ lib, fetchurl, buildPythonPackage
-, numpy, scikit-learn, pybind11, setuptools-scm, cython
-, pytestCheckHook }:
+{ lib
+, fetchurl
+, buildPythonPackage
+, numpy
+, scikit-learn
+, pybind11
+, setuptools-scm
+, cython
+, pytestCheckHook
+, pythonOlder
+}:
 
 buildPythonPackage rec {
   pname = "hmmlearn";
   version = "0.2.8";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.6";
 
   src = fetchurl {
     url = "mirror://pypi/h/hmmlearn/${pname}-${version}.tar.gz";
-    sha256 = "sha256-aWkx49zmgBzJt4xin1QwYd1+tnpxFVsD0bOeoXKipfk=";
+    hash = "sha256-aWkx49zmgBzJt4xin1QwYd1+tnpxFVsD0bOeoXKipfk=";
   };
 
-  buildInputs = [ setuptools-scm cython pybind11 ];
-  propagatedBuildInputs = [ numpy scikit-learn ];
-  checkInputs = [ pytestCheckHook ];
+  buildInputs = [
+    setuptools-scm
+    cython
+    pybind11
+  ];
 
-  pythonImportsCheck = [ "hmmlearn" ];
-  pytestFlagsArray = [ "--pyargs" "hmmlearn" ];
+  propagatedBuildInputs = [
+    numpy
+    scikit-learn
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "hmmlearn"
+  ];
+
+  pytestFlagsArray = [
+    "--pyargs"
+    "hmmlearn"
+  ];
 
   meta = with lib; {
     description = "Hidden Markov Models in Python with scikit-learn like API";
-    homepage    = "https://github.com/hmmlearn/hmmlearn";
-    license     = licenses.bsd3;
+    homepage = "https://github.com/hmmlearn/hmmlearn";
+    license = licenses.bsd3;
     maintainers = with maintainers; [ abbradar ];
   };
 }