diff --git a/setup.cfg b/setup.cfg
index 2d48e18..40e8228 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,6 +13,6 @@ license_file = LICENSE
 requires-dist =
     enum34; python_version<"3.4"
     configparser; python_version<"3.2"
-    pyflakes >= 1.5.0, < 1.7.0
+    pyflakes >= 1.5.0, < 2.0.0
     pycodestyle >= 2.4.0, < 2.5.0
     mccabe >= 0.6.0, < 0.7.0