diff --git a/minimum_dependency_generator/minimum_dependency_generator.py b/minimum_dependency_generator/minimum_dependency_generator.py
index 5d3f899..c98c9f2 100644
--- a/minimum_dependency_generator/minimum_dependency_generator.py
+++ b/minimum_dependency_generator/minimum_dependency_generator.py
@@ -150,6 +150,7 @@ def generate_min_requirements(paths, options=None, extras_require=None, output_f
         write_file(min_requirements, output_filepath)
     return min_requirements
 
+
 def write_file(data, filepath):
     try:
         with open(filepath, 'w') as f:
diff --git a/minimum_dependency_generator/tests/test_utils.py b/minimum_dependency_generator/tests/test_utils.py
index de5e8e5..c5af522 100644
--- a/minimum_dependency_generator/tests/test_utils.py
+++ b/minimum_dependency_generator/tests/test_utils.py
@@ -1,6 +1,8 @@
-from ..minimum_dependency_generator import write_file
 from tempfile import NamedTemporaryFile
 
+from ..minimum_dependency_generator import write_file
+
+
 def test_write_text_file():
     data = 'scipy==0.8.0\npandas==1.2.0\n'
     with NamedTemporaryFile() as temp:
@@ -10,4 +12,3 @@ def test_write_text_file():
             assert len(min_reqs) == 2
             assert 'scipy==0.8.0' == min_reqs[0].strip()
             assert 'pandas==1.2.0' == min_reqs[1].strip()
-