diff -up flake8-3.3.0/setup.py~ flake8-3.3.0/setup.py
--- flake8-3.3.0/setup.py~	2017-02-06 21:38:21.000000000 +0200
+++ flake8-3.3.0/setup.py	2017-02-07 14:38:05.420721816 +0200
@@ -17,9 +17,6 @@ tests_require = ['mock >= 2.0.0', 'pytes
 # NOTE(sigmavirus24): When updating these requirements, update them in
 # setup.cfg as well.
 requires = [
-    "pyflakes >= 1.5.0, < 1.6.0",
-    "pycodestyle >= 2.0.0, < 2.4.0",
-    "mccabe >= 0.6.0, < 0.7.0",
 ]
 
 if sys.version_info < (3, 4):