diff --git a/pyproject.toml b/pyproject.toml
index 20932416..dbb9ec3d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -153,6 +153,7 @@ lint.external = [
     # Vulture.
     "V",
 ]
+lint.flake8-tidy-imports.banned-api."operator.attrgetter".msg = "operator.attrgetter is banned: use a lambda instead."
 lint.flake8-tidy-imports.banned-api."typing.cast".msg = """\
     typing.cast is banned: use explicit type narrowing or a typed variable instead.\
     """