diff --git a/google/cloud/bigquery_v2/types/__init__.py b/google/cloud/bigquery_v2/types/__init__.py
index c038bcd74..c36b30969 100644
--- a/google/cloud/bigquery_v2/types/__init__.py
+++ b/google/cloud/bigquery_v2/types/__init__.py
@@ -13,7 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-from .encryption_config import EncryptionConfiguration
+from .encryption_config import (
+    EncryptionConfiguration,
+)
 from .model import (
     DeleteModelRequest,
     GetModelRequest,
@@ -22,14 +24,18 @@
     Model,
     PatchModelRequest,
 )
-from .model_reference import ModelReference
+from .model_reference import (
+    ModelReference,
+)
 from .standard_sql import (
     StandardSqlDataType,
     StandardSqlField,
     StandardSqlStructType,
     StandardSqlTableType,
 )
-from .table_reference import TableReference
+from .table_reference import (
+    TableReference,
+)
 
 __all__ = (
     "EncryptionConfiguration",
diff --git a/google/cloud/bigquery_v2/types/model.py b/google/cloud/bigquery_v2/types/model.py
index 7786d8ea4..f32e15eb1 100644
--- a/google/cloud/bigquery_v2/types/model.py
+++ b/google/cloud/bigquery_v2/types/model.py
@@ -55,7 +55,7 @@ class Model(proto.Message):
             model.
         friendly_name (str):
             Optional. A descriptive name for this model.
-        labels (Sequence[google.cloud.bigquery_v2.types.Model.LabelsEntry]):
+        labels (Mapping[str, str]):
             The labels associated with this model. You
             can use these to organize and group your models.
             Label keys and values can be no longer than 63
@@ -1200,7 +1200,7 @@ class TrainingOptions(proto.Message):
                 initial_learn_rate (float):
                     Specifies the initial learning rate for the
                     line search learn rate strategy.
-                label_class_weights (Sequence[google.cloud.bigquery_v2.types.Model.TrainingRun.TrainingOptions.LabelClassWeightsEntry]):
+                label_class_weights (Mapping[str, float]):
                     Weights associated with each label class, for
                     rebalancing the training data. Only applicable
                     for classification models.
diff --git a/owlbot.py b/owlbot.py
index 046280501..ca96f4e08 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -19,6 +19,25 @@
 from synthtool import gcp
 from synthtool.languages import python
 
+default_version = "v2"
+
+for library in s.get_staging_dirs(default_version):
+    # Avoid breaking change due to change in field renames.
+    # https://github.com/googleapis/python-bigquery/issues/319
+    s.replace(
+        library / f"google/cloud/bigquery_{library.name}/types/standard_sql.py",
+        r"type_ ",
+        "type ",
+    )
+    # Patch docs issue
+    s.replace(
+        library / f"google/cloud/bigquery_{library.name}/types/model.py",
+        r"""\"predicted_\"""",
+        """`predicted_`""",
+    )
+    s.move(library / f"google/cloud/bigquery_{library.name}/types")
+s.remove_staging_dirs()
+
 common = gcp.CommonTemplates()
 
 # ----------------------------------------------------------------------------