diff --git a/pyproject.toml b/pyproject.toml
index 1cf2352b0a..a0f5e760a7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -164,7 +164,6 @@ ignore = [
     "E501",  # line too long, handled by black
     "B008",  # do not perform function calls in argument defaults
     "C901",  # too complex
-    "W191", # indentation contains tabs
     "TID252", # relative imports okay
 ]