diff --git a/.gitignore b/.gitignore
index 51acbc76..e0321e4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,3 +38,5 @@ nosetests.xml
 .mr.developer.cfg
 .project
 .pydevproject
+
+pyspectral/version.py
\ No newline at end of file
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b170e1d6..46363c2b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -7,7 +7,7 @@ repos:
     - id: flake8
       additional_dependencies: [flake8-docstrings, flake8-debugger, flake8-bugbear]
 -   repo: https://github.com/pycqa/isort
-    rev: 5.10.1
+    rev: 5.12.0
     hooks:
       - id: isort
         language_version: python3
diff --git a/MANIFEST.in b/MANIFEST.in
index 67974bbe..4e87c71b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,6 +1,13 @@
-include pyspectral/etc/*
-include pyspectral/data/e490_00a.dat
-include pyspectral/data/MSG_SEVIRI_Spectral_Response_Characterisation.XLS
+prune *
+exclude *
+graft doc
+recursive-exclude doc/_build *
+graft pyspectral
+recursive-exclude pyspectral/data/modis *
 include LICENSE.txt
-include versioneer.py
+include README.md
+include AUTHORS.md
+include CHANGELOG.md
+include CHANGELOG_RSR_DATA.md
 include pyspectral/version.py
+global-exclude *.py[cod]
diff --git a/doc/conf.py b/doc/conf.py
index f9a744e6..47ecf74e 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,19 +1,8 @@
 # -*- coding: utf-8 -*-
-#
-# Pyspectral documentation build configuration file, created by
-# sphinx-quickstart on Tue Oct 15 13:31:45 2013.
-#
-# This file is execfile()d with the current directory set to its containing dir.
-#
-# Note that not all possible configuration values are present in this
-# autogenerated file.
-#
-# All configuration values have a default; values that are commented out
-# serve to show the default.
+"""Sphinx documentation configuration file."""
 
-import sys
 import os
-from pkg_resources import get_distribution
+import sys
 
 # PYTHONPATH = docs/source
 DOC_SOURCES_DIR = os.path.dirname(os.path.abspath(__file__))
@@ -24,62 +13,16 @@
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 sys.path.insert(0, os.path.abspath('../'))
-sys.path.insert(0, os.path.abspath('../pyspectral'))
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
-release = get_distribution('pyspectral').version
+from pyspectral import __version__ as release  # noqa
+
 # for example take major/minor
 version = '.'.join(release.split('.')[:2])
 
-
-class Mock(object):
-
-    """Mock class for doc/unit testing (on Travis)"""
-
-    __all__ = []
-
-    def __init__(self, *args, **kwargs):
-        pass
-
-    def __call__(self, *args, **kwargs):
-        return Mock()
-
-    @classmethod
-    def __getattr__(cls, name):
-        if name in ('__file__', '__path__'):
-            return '/dev/null'
-        elif name[0] == name[0].upper():
-            mockType = type(name, (), {})
-            mockType.__module__ = __name__
-            return mockType
-        elif name == "inf":
-            return 0
-        else:
-            return Mock()
-
-
-MOCK_MODULES = ['numpy', 'numpy.core',
-                'numpy.distutils.core', 'numpy.core.multiarray',
-                'dask',
-                'scipy', 'scipy.integrate', 'scipy.interpolate',
-                'scipy.interpolate.InterpolatedUnivariateSpline',
-                'geotiepoints', 'geotiepoints.multilinear',
-                'trollsift', 'trollsift.parser',
-                'h5py', 'tqdm', 'xlrd']
-
-for mod_name in MOCK_MODULES:
-    sys.modules[mod_name] = Mock()
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-# sys.path.insert(0, '/opt/lib/python2.5/site-packages')
-sys.path.insert(0, os.path.abspath('../pyspectral'))
-
-
 # -- General configuration -----------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
diff --git a/doc/rtd_environment.yaml b/doc/rtd_environment.yaml
index d4b05526..5964381a 100644
--- a/doc/rtd_environment.yaml
+++ b/doc/rtd_environment.yaml
@@ -8,6 +8,12 @@ dependencies:
   - sphinx
   - sphinx_rtd_theme
   - sphinxcontrib-apidoc
+  - dask
+  - scipy
+  - trollsift
+  - h5py
+  - tqdm
+  - xlrd
   - pip:
     - graphviz
     - ..  # relative path to the satpy project
diff --git a/plot_some_band.py b/plot_some_band.py
index 8f854cd7..a4cf9cf2 100644
--- a/plot_some_band.py
+++ b/plot_some_band.py
@@ -19,14 +19,15 @@
 
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-"""Plot relative spectral responses for a list of sensors"""
+"""Plot relative spectral responses for a list of sensors."""
 
 import argparse
+
 import matplotlib.pyplot as plt
+import numpy as np
+
 from pyspectral.rsr_reader import RelativeSpectralResponse
 from pyspectral.utils import get_bandname_from_wavelength
-import numpy as np
 
 platforms = ['Himawari-8', 'GOES-16', 'Meteosat-10',
              'EOS-Aqua', 'Sentinel-3A', 'Sentinel-3A',
diff --git a/pyproject.toml b/pyproject.toml
index d5941825..6d2ebe94 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,10 @@
+[build-system]
+requires = ["setuptools>=60", "wheel", "setuptools_scm[toml]>=8.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+write_to = "pyspectral/version.py"
+
 [tool.isort]
 sections = ["FUTURE", "STDLIB", "THIRDPARTY", "FIRSTPARTY", "LOCALFOLDER"]
 profile = "black"
diff --git a/pyspectral/__init__.py b/pyspectral/__init__.py
index 66ae77f8..9d6e29d7 100644
--- a/pyspectral/__init__.py
+++ b/pyspectral/__init__.py
@@ -19,10 +19,10 @@
 
 """Pyspectral package init."""
 
-from pkg_resources import DistributionNotFound, get_distribution
-
 try:
-    __version__ = get_distribution(__name__).version
-except DistributionNotFound:
-    # package is not installed
-    pass
+    from pyspectral.version import version as __version__  # noqa
+except ModuleNotFoundError:
+    raise ModuleNotFoundError(
+        "No module named pyspectral.version. This could mean "
+        "you didn't install 'pyspectral' properly. Try reinstalling ('pip "
+        "install pyspectral').")
diff --git a/pyspectral/tests/test_rayleigh.py b/pyspectral/tests/test_rayleigh.py
index 0059bf44..40765942 100644
--- a/pyspectral/tests/test_rayleigh.py
+++ b/pyspectral/tests/test_rayleigh.py
@@ -282,7 +282,6 @@ def test_rayleigh_reduction(self, fake_lut_hdf5):
 
     def test_rayleigh_getname(self):
         """Test logic for Rayleigh instrument selection."""
-
         with pytest.raises(ValueError):
             _create_rayleigh(platform='FY-4B')
 
diff --git a/pyspectral/tests/test_utils.py b/pyspectral/tests/test_utils.py
index b0ee8927..3969bc00 100644
--- a/pyspectral/tests/test_utils.py
+++ b/pyspectral/tests/test_utils.py
@@ -33,7 +33,7 @@
 import responses
 
 from pyspectral import utils
-from pyspectral.utils import bytes2string, check_and_adjust_instrument_name, are_instruments_identical, np2str
+from pyspectral.utils import are_instruments_identical, bytes2string, check_and_adjust_instrument_name, np2str
 
 TEST_RSR = {'20': {}, }
 TEST_RSR2 = {'20': {}, }
diff --git a/pyspectral/utils.py b/pyspectral/utils.py
index da3afe04..2945ab13 100644
--- a/pyspectral/utils.py
+++ b/pyspectral/utils.py
@@ -383,7 +383,8 @@ def download_luts(aerosol_types=None, dry_run=False, aerosol_type=None):
 
 def _get_aerosol_types(aerosol_types, aerosol_type):
     if aerosol_type is not None:
-        warnings.warn("'aerosol_type' is deprecated, use 'aerosol_types' instead.", UserWarning)
+        warnings.warn("'aerosol_type' is deprecated, use 'aerosol_types' instead.", UserWarning,
+                      stacklevel=3)
         if isinstance(aerosol_type, (list, tuple, set)):
             aerosol_types = aerosol_type
         else:
diff --git a/rsr_convert_scripts/agri_rsr.py b/rsr_convert_scripts/agri_rsr.py
index 5bf4a2dd..5958e4f4 100644
--- a/rsr_convert_scripts/agri_rsr.py
+++ b/rsr_convert_scripts/agri_rsr.py
@@ -80,7 +80,6 @@ def __init__(self, bandname, platform_name):
         self._get_options_from_config()
         self._get_bandfilenames()
 
-
         LOG.debug("Filenames: %s", str(self.filenames))
         if self.filenames[bandname] and os.path.exists(self.filenames[bandname]):
             self.requested_band_filename = self.filenames[bandname]
diff --git a/rsr_convert_scripts/avhrr1_rsr.py b/rsr_convert_scripts/avhrr1_rsr.py
index 5fd45c93..f6de9ad6 100644
--- a/rsr_convert_scripts/avhrr1_rsr.py
+++ b/rsr_convert_scripts/avhrr1_rsr.py
@@ -22,15 +22,16 @@
 Data from NOAA: AVHRR1_SRF_only.xls
 """
 
+import logging
 import os
-from xlrd import open_workbook
-from pyspectral.config import get_config
-from pyspectral.utils import get_central_wave
+
+import h5py
 import numpy as np
 import pkg_resources
-import logging
-import h5py
+from xlrd import open_workbook
 
+from pyspectral.config import get_config
+from pyspectral.utils import get_central_wave
 
 LOG = logging.getLogger(__name__)
 
diff --git a/rsr_convert_scripts/msu_gs_reader.py b/rsr_convert_scripts/msu_gs_reader.py
index ef71ccb2..56217fed 100644
--- a/rsr_convert_scripts/msu_gs_reader.py
+++ b/rsr_convert_scripts/msu_gs_reader.py
@@ -15,17 +15,20 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""Read the Electro-L N2 MSU-GS spectral response functions.
 
-"""Read the Electro-L N2 MSU-GS spectral response functions. Data from the NWPSAF:
+Data from the NWPSAF:
 https://nwp-saf.eumetsat.int/downloads/rtcoef_rttov13/ir_srf/rtcoef_electro-l_2_msugs_srf.html
 
 """
 
+import logging
 import os
+
 import numpy as np
-from pyspectral.utils import convert2hdf5 as tohdf5
+
 from pyspectral.raw_reader import InstrumentRSR
-import logging
+from pyspectral.utils import convert2hdf5 as tohdf5
 
 LOG = logging.getLogger(__name__)
 
@@ -40,12 +43,11 @@
 
 
 class MsugsRSR(InstrumentRSR):
-    """Container for the Electro-L N2 MSU-GS relative spectral response data"""
+    """Container for the Electro-L N2 MSU-GS relative spectral response data."""
 
     def __init__(self, bandname, platform_name):
-
-        super(MsugsRSR, self).__init__(
-            bandname, platform_name, MSUGS_BAND_NAMES)
+        """Load files."""
+        super(MsugsRSR, self).__init__(bandname, platform_name, MSUGS_BAND_NAMES)
 
         self.instrument = 'msu-gs'
         self._get_options_from_config()
@@ -67,7 +69,7 @@ def __init__(self, bandname, platform_name):
         self.wavespace = 'wavelength'
 
     def _load(self, scale=10000.0):
-        """Load the MSU-GS RSR data for the band requested"""
+        """Load the MSU-GS RSR data for the band requested."""
         data = np.genfromtxt(self.requested_band_filename,
                              unpack=True,
                              names=['wavenumber',
@@ -84,7 +86,7 @@ def _load(self, scale=10000.0):
 
 
 def main():
-    """Main"""
+    """Run main script."""
     for platform_name in ['Electro-L-N2', ]:
         tohdf5(MsugsRSR, platform_name, MSUGS_BAND_NAMES)
 
diff --git a/setup.cfg b/setup.cfg
index 12800174..4959a976 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,9 +1,3 @@
-[options]
-setup_requires =
-    setuptools_scm
-    setuptools_scm_git_archive
-
-
 [bdist_rpm]
 provides=pyspectral
 requires=numpy h5py python-geotiepoints dask PyYAML python-requests python-appdirs
diff --git a/setup.py b/setup.py
index 292301e6..51bebfff 100644
--- a/setup.py
+++ b/setup.py
@@ -23,20 +23,11 @@
 
 from setuptools import find_packages, setup
 
-try:
-    # HACK: https://github.com/pypa/setuptools_scm/issues/190#issuecomment-351181286
-    # Stop setuptools_scm from including all repository files
-    import setuptools_scm.integration
-    setuptools_scm.integration.find_files = lambda _: []
-except ImportError:
-    pass
-
-
 description = ('Reading and manipulaing satellite sensor spectral responses and the '
                'solar spectrum, to perfom various corrections to VIS and NIR band data')
 
 try:
-    with open('./README', 'r') as fd:
+    with open('./README.md', 'r') as fd:
         long_description = fd.read()
 except IOError:
     long_description = ''
@@ -62,8 +53,8 @@
                    'Topic :: Scientific/Engineering'],
       url='https://github.com/pytroll/pyspectral',
       long_description=long_description,
+      long_description_content_type="text/markdown",
       license='GPLv3',
-
       packages=find_packages(),
       include_package_data=True,
       package_data={
@@ -93,5 +84,4 @@
       tests_require=test_requires,
       python_requires='>=3.7',
       zip_safe=False,
-      use_scm_version=True
       )