diff --git a/Makefile b/Makefile
index a963f3b..ce84673 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ clean:
 
 autopep8:
 	@echo 'Auto Formatting...'
-	@$(python_files) | xargs -0 autopep8 --jobs 0 --in-place --aggressive
+	@$(python_files) | xargs -0 autopep8 --jobs 0 --in-place --aggressive --global-config setup.cfg
 
 lint:
 	@echo 'Linting...'
diff --git a/setup.py b/setup.py
index bf9511a..26766b7 100755
--- a/setup.py
+++ b/setup.py
@@ -39,19 +39,19 @@ def get_version():
     ],
     test_suite='tests',
     install_requires=[
-        'GitPython==2.1.1',
-        'pylint==1.6.5',
-        'six>=1.10.0',
-        'typing>=3.5.3.0',
+        'GitPython>=2.1.1,<3',
+        'pylint>=1.6.5,<2',
+        'six>=1.10.0,<2',
+        'typing>=3.5.3.0,<4',
+        'autopep8>=1.2.2,<2',
     ],
     extras_require={
         'dev': [
-            'autopep8',
-            'mock; python_version < "3.3"',
-            'mypy; python_version >= "3.3"',
-            'pycodestyle == 2.2.0',
-            'pytest',
-            'pytest-randomly',
+            'mock==2.0.0; python_version < "3.3"',
+            'mypy==0.501; python_version >= "3.3"',
+            'pycodestyle==2.3.1',
+            'pytest==3.0.6',
+            'pytest-randomly==1.1.2',
         ]
     }
 )
diff --git a/shopify_python/git_utils.py b/shopify_python/git_utils.py
index a269bda..0f8ebe0 100644
--- a/shopify_python/git_utils.py
+++ b/shopify_python/git_utils.py
@@ -105,6 +105,7 @@ def autopep_files(files, max_line_length):
 
 
 class _CustomPylintReporter(text.ColorizedTextReporter):
+
     def __init__(self):
         # type: () -> None
         super(_CustomPylintReporter, self).__init__()