diff --git a/ops/docker_run.py b/ops/docker_run.py
index 06f9d6cc8dc8..e93c3274803b 100644
--- a/ops/docker_run.py
+++ b/ops/docker_run.py
@@ -70,6 +70,7 @@ def docker_run(
     docker_run_cli_args.extend(
         itertools.chain.from_iterable([["-e", f"{k}={v}"] for k, v in user_ids.items()])
     )
+    docker_run_cli_args.extend(["-e", "NCCL_RAS_ENABLE=0"])
     docker_run_cli_args.extend(extra_args)
     docker_run_cli_args.append(container_tag)
     docker_run_cli_args.extend(command_args)
diff --git a/python-package/xgboost/sklearn.py b/python-package/xgboost/sklearn.py
index 53db87b381f7..cf15f5d5d717 100644
--- a/python-package/xgboost/sklearn.py
+++ b/python-package/xgboost/sklearn.py
@@ -810,9 +810,11 @@ def __init__(
 
     def _more_tags(self) -> Dict[str, bool]:
         """Tags used for scikit-learn data validation."""
-        tags = {"allow_nan": True, "no_validation": True}
+        tags = {"allow_nan": True, "no_validation": True, "sparse": True}
         if hasattr(self, "kwargs") and self.kwargs.get("updater") == "shotgun":
             tags["non_deterministic"] = True
+
+        tags["categorical"] = self.enable_categorical
         return tags
 
     @staticmethod
@@ -826,11 +828,15 @@ def _update_sklearn_tags_from_dict(
         ``scikit-learn`` 1.6 introduced a dataclass-based interface for estimator tags.
         ref: https://github.com/scikit-learn/scikit-learn/pull/29677
 
-        This method handles updating that instance based on the values in ``self._more_tags()``.
+        This method handles updating that instance based on the values in
+        ``self._more_tags()``.
+
         """
         tags.non_deterministic = tags_dict.get("non_deterministic", False)
         tags.no_validation = tags_dict["no_validation"]
         tags.input_tags.allow_nan = tags_dict["allow_nan"]
+        tags.input_tags.sparse = tags_dict["sparse"]
+        tags.input_tags.categorical = tags_dict["categorical"]
         return tags
 
     def __sklearn_tags__(self) -> _sklearn_Tags:
diff --git a/tests/python/test_with_sklearn.py b/tests/python/test_with_sklearn.py
index 42973e843f31..efca92a8464a 100644
--- a/tests/python/test_with_sklearn.py
+++ b/tests/python/test_with_sklearn.py
@@ -1350,7 +1350,7 @@ def test_data_initialization() -> None:
     validate_data_initialization(xgb.QuantileDMatrix, xgb.XGBClassifier, X, y)
 
 
-@parametrize_with_checks([xgb.XGBRegressor()])
+@parametrize_with_checks([xgb.XGBRegressor(enable_categorical=True)])
 def test_estimator_reg(estimator, check):
     if os.environ["PYTEST_CURRENT_TEST"].find("check_supervised_y_no_nan") != -1:
         # The test uses float64 and requires the error message to contain: