diff --git a/cs-config/cs_config/helpers.py b/cs-config/cs_config/helpers.py
index 170bc49d..b9bf36fe 100644
--- a/cs-config/cs_config/helpers.py
+++ b/cs-config/cs_config/helpers.py
@@ -1,6 +1,7 @@
 """
 Functions used to help OG-USA configure to COMP
 """
+
 try:
     import boto3
 except ImportError:
diff --git a/ogusa/demographics.py b/ogusa/demographics.py
index d0b0cd82..24b5f129 100644
--- a/ogusa/demographics.py
+++ b/ogusa/demographics.py
@@ -4,6 +4,7 @@
 model
 ------------------------------------------------------------------------
 """
+
 # Import packages
 import os
 import numpy as np
diff --git a/ogusa/estimate_beta_j.py b/ogusa/estimate_beta_j.py
index e542fb42..6be10460 100644
--- a/ogusa/estimate_beta_j.py
+++ b/ogusa/estimate_beta_j.py
@@ -3,7 +3,6 @@
 beta_j parameters for OG-USA.
 """
 
-
 import numpy as np
 import os
 import scipy.optimize as opt
diff --git a/ogusa/get_micro_data.py b/ogusa/get_micro_data.py
index 40c43946..82607495 100644
--- a/ogusa/get_micro_data.py
+++ b/ogusa/get_micro_data.py
@@ -4,6 +4,7 @@
 model (Tax-Calculator).
 ------------------------------------------------------------------------
 """
+
 from taxcalc import Records, Calculator, Policy
 from pandas import DataFrame
 from dask import delayed, compute
diff --git a/ogusa/income.py b/ogusa/income.py
index 267baba6..6953bc1a 100644
--- a/ogusa/income.py
+++ b/ogusa/income.py
@@ -5,6 +5,7 @@
 percentiles, as it uses fitted polynomials to those percentiles.
 -----------------------------------------------------------------
 """
+
 import numpy as np
 import scipy.optimize as opt
 import scipy.interpolate as si
diff --git a/tests/test_run_example.py b/tests/test_run_example.py
index e6698f42..a02808f8 100644
--- a/tests/test_run_example.py
+++ b/tests/test_run_example.py
@@ -3,6 +3,7 @@
 work by making sure that it does not break (is still running) after
 5 minutes (300 seconds).
 """
+
 import multiprocessing
 import time
 import os