diff --git a/openforcefields/__init__.py b/openforcefields/__init__.py
index a1c0256..2abbd20 100644
--- a/openforcefields/__init__.py
+++ b/openforcefields/__init__.py
@@ -1,6 +1,7 @@
 """
 OpenFF Force fields
 """
+
 from openforcefields.openforcefields import get_forcefield_dirs_paths
 
 from . import _version
diff --git a/openforcefields/openforcefields.py b/openforcefields/openforcefields.py
index 5bf06df..e3f5a6f 100644
--- a/openforcefields/openforcefields.py
+++ b/openforcefields/openforcefields.py
@@ -6,6 +6,7 @@
 files.
 
 """
+
 from importlib.resources import files
 
 
diff --git a/scripts/write_opc.py b/scripts/write_opc.py
index 5528e51..09f16a0 100644
--- a/scripts/write_opc.py
+++ b/scripts/write_opc.py
@@ -5,6 +5,7 @@
 Water hydrogen charge from $AMBERHOME/dat/leap/lib/solvents.lib
 Ion Lennard-Jones parameters from $AMBERHOME/dat/leap/parm/frcmod.ionslm_126_opc3
 """
+
 from pathlib import Path
 
 import pandas
diff --git a/scripts/write_opc3.py b/scripts/write_opc3.py
index 6adb094..65cd549 100644
--- a/scripts/write_opc3.py
+++ b/scripts/write_opc3.py
@@ -5,6 +5,7 @@
 Water hydrogen charge from $AMBERHOME/dat/leap/lib/solvents.lib
 Ion Lennard-Jones parameters from $AMBERHOME/dat/leap/parm/frcmod.ionslm_126_opc3
 """
+
 from pathlib import Path
 
 import pandas
diff --git a/scripts/write_tip3p_fb.py b/scripts/write_tip3p_fb.py
index 54bb33d..abb6330 100644
--- a/scripts/write_tip3p_fb.py
+++ b/scripts/write_tip3p_fb.py
@@ -3,6 +3,7 @@
 https://github.com/pandegroup/tip3p-tip4p-fb/blob/master/OpenMM/tip3p-fb/tip3p-fb.xml
 Ion Lennard-Jones parameters from $AMBERHOME/dat/leap/parm/frcmod.ionslm_126_fb3
 """
+
 from pathlib import Path
 
 import pandas
diff --git a/scripts/write_tip4p_ew.py b/scripts/write_tip4p_ew.py
index f2ed779..6ad58af 100644
--- a/scripts/write_tip4p_ew.py
+++ b/scripts/write_tip4p_ew.py
@@ -2,6 +2,7 @@
 Write TIP3P-EW parameters into a SMIRNOFF force field. Based on
 https://github.com/openmm/openmm/blob/116aed3927066b0a53eba929110d73f3daew64bd/wrappers/python/openmm/app/data/tip4pew.xml
 """
+
 from pathlib import Path
 
 from openff.toolkit.typing.engines.smirnoff.forcefield import ForceField
diff --git a/scripts/write_tip4p_fb.py b/scripts/write_tip4p_fb.py
index 534d17e..e3e2212 100644
--- a/scripts/write_tip4p_fb.py
+++ b/scripts/write_tip4p_fb.py
@@ -3,6 +3,7 @@
 https://github.com/pandegroup/tip3p-tip4p-fb/blob/master/OpenMM/tip4p-fb/tip4p-fb.xml
 Ion Lennard-Jones parameters from $AMBERHOME/dat/leap/parm/frcmod.ionslm_126_fb4
 """
+
 from pathlib import Path
 
 import pandas
diff --git a/scripts/write_tip5p.py b/scripts/write_tip5p.py
index 5465af4..848533d 100644
--- a/scripts/write_tip5p.py
+++ b/scripts/write_tip5p.py
@@ -2,6 +2,7 @@
 Write TIP5P parameters into a SMIRNOFF force field. Based on
 https://docs.lammps.org/Howto_tip5p.html
 """
+
 from pathlib import Path
 
 from openff.toolkit.typing.engines.smirnoff.forcefield import ForceField
diff --git a/setup.py b/setup.py
index 791d240..4269bd0 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,7 @@
 """
 openff-forcefields
 """
+
 from setuptools import setup
 
 import versioneer