diff --git a/.flake8 b/.flake8
index f4f92e1bc..dc53bee7e 100644
--- a/.flake8
+++ b/.flake8
@@ -1,7 +1,15 @@
 [flake8]
 # Rule definitions: http://flake8.pycqa.org/en/latest/user/error-codes.html
-# W503: line break before binary operator
 exclude = venv*,__pycache__,node_modules,cache
-ignore = W503
 max-complexity = 14
 max-line-length = 120
+
+# B003 assigning to os.environ
+# B306 BaseException.message has been deprecated
+# W503: line break before binary operator
+# W504 line break after binary operator
+extend_ignore=
+    B003,
+    B306,
+    W503,
+    W504
diff --git a/setup.cfg b/setup.cfg
index 0e515ccfe..e4b7097a7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,8 +9,3 @@ multi_line_output=3
 known_third_party=notifications_utils,notifications_python_client
 known_first_party=app,tests
 include_trailing_comma=True
-
-[flake8]
-# W504 line break after binary operator
-extend_ignore=B003, B306, W504
-select=B901, B902, B903