diff --git a/setup.py b/setup.py
index beadf73..9fa91fd 100644
--- a/setup.py
+++ b/setup.py
@@ -29,9 +29,9 @@ if mock is None:
 
 
 requires = [
-    "pyflakes >= 0.8.1, < 1.1",
+    "pyflakes >= 0.8.1, != 1.2.0, != 1.2.1, != 1.2.2",
     "pep8 >= 1.5.7, != 1.6.0, != 1.6.1, != 1.6.2",
-    "mccabe >= 0.2.1, < 0.4",
+    "mccabe >= 0.5.0",
 ]
 
 if sys.version_info < (3, 4):