diff --git a/setup.cfg b/setup.cfg
index 47d5a4f6..1ff39f25 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -58,6 +58,9 @@ skip_gitignore = true
 
 [flake8]
 max-line-length = 88
+select = B,B9,E,F,C9
+extend-ignore = E203
+extend-exclude = vendored
 
 [tool:pytest]
 testpaths = tests