diff --git a/pyproject.toml b/pyproject.toml
index c54c2b97528..a97c4449a13 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -780,8 +780,6 @@ ignore = [
     "TRY400", # Use `logging.exception` instead of `logging.error`
     # Ignored due to performance: https://github.com/charliermarsh/ruff/issues/2923
     "UP038", # Use `X | Y` in `isinstance` call instead of `(X, Y)`
-    # Ignored due to incompatible with mypy: https://github.com/python/mypy/issues/15238
-    "UP040", # Checks for use of TypeAlias annotation for declaring type aliases.
 
     # May conflict with the formatter, https://docs.astral.sh/ruff/formatter/#conflicting-lint-rules
     "W191",