diff --git a/pyproject.toml b/pyproject.toml
index d7b60ef17..652ae3633 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -111,7 +111,7 @@ select = [
   "W", # pycodestyle warnings
   "YTT", # flake8-2020
 ]
-extend-ignore = [
+ignore = [
   "E203", # Whitespace before ':'
   "E221", # Multiple spaces before operator
   "E226", # Missing whitespace around arithmetic operator