diff --git a/pkgs/development/python-modules/pymatgen-lammps/default.nix b/pkgs/development/python-modules/pymatgen-lammps/default.nix
deleted file mode 100644
index b1b5cf473855..000000000000
--- a/pkgs/development/python-modules/pymatgen-lammps/default.nix
+++ /dev/null
@@ -1,34 +0,0 @@
-{ lib
-, fetchurl
-, buildPythonPackage
-, pymatgen
-, pytest-runner
-, pytestCheckHook
-, isPy3k
-}:
-
-buildPythonPackage rec {
-  pname = "pymatgen-lammps";
-  version = "0.4.5";
-  disabled = !isPy3k;
-
-  src = fetchurl {
-     url = "https://gitlab.com/costrouc/${pname}/-/archive/v${version}/${pname}-v${version}.tar.gz";
-     sha256 = "0shldl8is3195jmji7dr3zsh1bzxlahaqrmpr28niks7nnfj80fx";
-  };
-
-  buildInputs = [ pytest-runner ];
-  nativeCheckInputs = [ 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;
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 776ac5734e97..c030823624ee 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -222,6 +222,7 @@ mapAliases ({
   pyjson5 = json5; # added 2022-08-28
   pylibgen = throw "pylibgen is unmaintained upstreamed, and removed from nixpkgs"; # added 2020-06-20
   PyLD = pyld; # added 2022-06-22
+  pymatgen-lammps = throw "pymatgen-lammps has been removed because it is unmaintained and broken"; # added 2023-06-20
   pymc3 = pymc; # added 2022-06-05, module was rename starting with 4.0.0
   pymssql = throw "pymssql has been abandoned upstream."; # added 2020-05-04
   PyMVGLive = pymvglive; # added 2023-02-19
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 64a42bb61cce..6aea3e513f79 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8897,8 +8897,6 @@ self: super: with self; {
 
   pymatgen = callPackage ../development/python-modules/pymatgen { };
 
-  pymatgen-lammps = callPackage ../development/python-modules/pymatgen-lammps { };
-
   pymaven-patch = callPackage ../development/python-modules/pymaven-patch { };
 
   pymavlink = callPackage ../development/python-modules/pymavlink { };