diff --git a/poetry.lock b/poetry.lock
index 9ac1435f..f6e8b378 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2125,8 +2125,8 @@ files = [
 [package.dependencies]
 numpy = [
     {version = ">=1.22.4", markers = "python_version < \"3.11\""},
-    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
     {version = ">=1.23.2", markers = "python_version == \"3.11\""},
+    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
 ]
 python-dateutil = ">=2.8.2"
 pytz = ">=2020.1"
@@ -2480,8 +2480,8 @@ astroid = ">=3.2.0,<=3.3.0-dev0"
 colorama = {version = ">=0.4.5", markers = "sys_platform == \"win32\""}
 dill = [
     {version = ">=0.2", markers = "python_version < \"3.11\""},
+    {version = ">=0.3.6", markers = "python_version >= \"3.11\""},
     {version = ">=0.3.7", markers = "python_version >= \"3.12\""},
-    {version = ">=0.3.6", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
 ]
 isort = ">=4.2.5,<5.13.0 || >5.13.0,<6"
 mccabe = ">=0.6,<0.8"
@@ -2647,7 +2647,6 @@ files = [
     {file = "PyYAML-6.0.1-cp311-cp311-win_amd64.whl", hash = "sha256:bf07ee2fef7014951eeb99f56f39c9bb4af143d8aa3c21b1677805985307da34"},
     {file = "PyYAML-6.0.1-cp312-cp312-macosx_10_9_x86_64.whl", hash = "sha256:855fb52b0dc35af121542a76b9a84f8d1cd886ea97c84703eaa6d88e37a2ad28"},
     {file = "PyYAML-6.0.1-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:40df9b996c2b73138957fe23a16a4f0ba614f4c0efce1e9406a184b6d07fa3a9"},
-    {file = "PyYAML-6.0.1-cp312-cp312-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a08c6f0fe150303c1c6b71ebcd7213c2858041a7e01975da3a99aed1e7a378ef"},
     {file = "PyYAML-6.0.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:6c22bec3fbe2524cde73d7ada88f6566758a8f7227bfbf93a408a9d86bcc12a0"},
     {file = "PyYAML-6.0.1-cp312-cp312-musllinux_1_1_x86_64.whl", hash = "sha256:8d4e9c88387b0f5c7d5f281e55304de64cf7f9c0021a3525bd3b1c542da3b0e4"},
     {file = "PyYAML-6.0.1-cp312-cp312-win32.whl", hash = "sha256:d483d2cdf104e7c9fa60c544d92981f12ad66a457afae824d146093b8c294c54"},
diff --git a/src/py4vasp/calculation/__init__.py b/src/py4vasp/calculation/__init__.py
index 75a08478..17a4ae34 100644
--- a/src/py4vasp/calculation/__init__.py
+++ b/src/py4vasp/calculation/__init__.py
@@ -79,7 +79,7 @@ class provides a more flexible interface with which you can determine the source
     "workfunction",
 )
 _private = ("dispersion",)
-__all__ = _quantities + _input_files
+__all__ = _quantities  # + _input_files
 
 
 path = pathlib.Path(".")
@@ -90,9 +90,9 @@ def __getattr__(attr):
         module = importlib.import_module(f"py4vasp.calculation._{attr}")
         class_ = getattr(module, convert.to_camelcase(attr))
         return class_.from_path(".")
-    elif attr in (_input_files):
-        class_ = getattr(control, attr)
-        return class_(".")
+    #    elif attr in (_input_files):
+    #        class_ = getattr(control, attr)
+    #        return class_(".")
     else:
         message = f"Could not find {attr} in the possible attributes, please check the spelling"
         raise exception.MissingAttribute(message)
diff --git a/src/py4vasp/calculation/_class.py b/src/py4vasp/calculation/_class.py
index c0e4e3dc..041a9253 100644
--- a/src/py4vasp/calculation/_class.py
+++ b/src/py4vasp/calculation/_class.py
@@ -94,32 +94,33 @@ def path(self):
         "Return the path in which the calculation is run."
         return self._path
 
-    @property
-    def INCAR(self):
-        "The INCAR file of the VASP calculation."
-        return self._INCAR
-
-    @INCAR.setter
-    def INCAR(self, incar):
-        self._INCAR.write(str(incar))
-
-    @property
-    def KPOINTS(self):
-        "The KPOINTS file of the VASP calculation."
-        return self._KPOINTS
-
-    @KPOINTS.setter
-    def KPOINTS(self, kpoints):
-        self._KPOINTS.write(str(kpoints))
-
-    @property
-    def POSCAR(self):
-        "The POSCAR file of the VASP calculation."
-        return self._POSCAR
-
-    @POSCAR.setter
-    def POSCAR(self, poscar):
-        self._POSCAR.write(str(poscar))
+    # Input files are not in current release
+    # @property
+    # def INCAR(self):
+    #     "The INCAR file of the VASP calculation."
+    #     return self._INCAR
+    #
+    # @INCAR.setter
+    # def INCAR(self, incar):
+    #     self._INCAR.write(str(incar))
+    #
+    # @property
+    # def KPOINTS(self):
+    #     "The KPOINTS file of the VASP calculation."
+    #     return self._KPOINTS
+    #
+    # @KPOINTS.setter
+    # def KPOINTS(self, kpoints):
+    #     self._KPOINTS.write(str(kpoints))
+    #
+    # @property
+    # def POSCAR(self):
+    #     "The POSCAR file of the VASP calculation."
+    #     return self._POSCAR
+    #
+    # @POSCAR.setter
+    # def POSCAR(self, poscar):
+    #     self._POSCAR.write(str(poscar))
 
 
 def _add_all_refinement_classes(calc, add_single_class):
@@ -155,6 +156,8 @@ def _add_to_documentation(calc, name):
 
 
 def _add_input_files(calc):
+    return calc
+    # Input files are not in current release
     for name in calculation._input_files:
         file_ = getattr(control, name)(calc.path())
         setattr(calc, f"_{name}", file_)
diff --git a/tests/calculation/test_class.py b/tests/calculation/test_class.py
index 501aa89f..441ffbce 100644
--- a/tests/calculation/test_class.py
+++ b/tests/calculation/test_class.py
@@ -51,6 +51,7 @@ def test_all_attributes(mock_access):
     mock_access.return_value.__enter__.assert_not_called()
 
 
+@pytest.mark.skip("Input files are not included in current release.")
 def test_input_files_from_path():
     with patch("py4vasp._control.base.InputFile.__init__", return_value=None) as mock:
         calculation = Calculation.from_path("test_path")
@@ -59,6 +60,7 @@ def test_input_files_from_path():
     check_all_input_files(calculation)
 
 
+@pytest.mark.skip("Input files are not included in current release.")
 def test_input_files_from_file():
     with patch("py4vasp._control.base.InputFile.__init__", return_value=None) as mock:
         calculation = Calculation.from_file("test_file")
diff --git a/tests/conftest.py b/tests/conftest.py
index e7e96906..da06f97f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -712,7 +712,8 @@ def _partial_charge(selection):
     else:
         spin_dimension = 1
     grid = raw.VaspData(tuple(reversed(grid_dim)))
-    gaussian_charge = np.zeros((len(kpoints), len(bands), spin_dimension, *grid_dim))
+    charge_shape = (len(kpoints), len(bands), spin_dimension, *grid_dim)
+    gaussian_charge = np.zeros(charge_shape)
     if not _is_core():
         cov = grid_dim[0] / 10  # standard deviation
         z = np.arange(grid_dim[0])  # z range