diff --git a/pkgs/development/python-modules/pynndescent/default.nix b/pkgs/development/python-modules/pynndescent/default.nix
index 4173987a7f6a..f15cfef63c6e 100644
--- a/pkgs/development/python-modules/pynndescent/default.nix
+++ b/pkgs/development/python-modules/pynndescent/default.nix
@@ -7,16 +7,19 @@
 , scikit-learn
 , scipy
 , pytestCheckHook
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "pynndescent";
-  version = "0.5.5";
+  version = "0.5.6";
   format = "setuptools";
 
+  disabled = pythonOlder "3.6";
+
   src = fetchPypi {
     inherit pname version;
-    sha256 = "7a7df8412b19cfb3596060faf5a8c5d0bf5b3bd504f8efd900fc4e3918c6f882";
+    hash = "sha256-YfsxiFuqxGnWeTPix8k1tu3rsG7kmOLw+d/JfFnTclw=";
   };
 
   propagatedBuildInputs = [
@@ -31,6 +34,10 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  pythonImportsCheck = [
+    "pynndescent"
+  ];
+
   meta = with lib; {
     description = "Nearest Neighbor Descent";
     homepage = "https://github.com/lmcinnes/pynndescent";