diff --git a/pkgs/development/python-modules/pymatgen-lammps/default.nix b/pkgs/development/python-modules/pymatgen-lammps/default.nix
index c80472a6730..72f362f85c4 100644
--- a/pkgs/development/python-modules/pymatgen-lammps/default.nix
+++ b/pkgs/development/python-modules/pymatgen-lammps/default.nix
@@ -3,14 +3,14 @@
 , buildPythonPackage
 , pymatgen
 , pytestrunner
-, pytest
+, pytestCheckHook
 , isPy3k
 }:
 
 buildPythonPackage rec {
   pname = "pymatgen-lammps";
   version = "0.4.5";
-  disabled = (!isPy3k);
+  disabled = !isPy3k;
 
   src = fetchurl {
      url = "https://gitlab.com/costrouc/${pname}/-/archive/v${version}/${pname}-v${version}.tar.gz";
@@ -18,13 +18,17 @@ buildPythonPackage rec {
   };
 
   buildInputs = [ pytestrunner ];
-  checkInputs = [ pytest ];
+  checkInputs = [ pytestCheckHook ];
   propagatedBuildInputs = [ pymatgen ];
 
+  pythonImportsCheck = [ "pmg_lammps" ];
+
   meta = {
     description = "A LAMMPS wrapper using pymatgen";
     homepage = "https://gitlab.com/costrouc/pymatgen-lammps";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ costrouc ];
+    # not compatible with recent versions of pymatgen
+    broken = true;
   };
 }