diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/__init__.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/__init__.py
index e1321d3..3835c8f 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/__init__.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/__init__.py
@@ -28,7 +28,6 @@
 _transport_registry["grpc"] = ConnectionServiceGrpcTransport
 _transport_registry["grpc_asyncio"] = ConnectionServiceGrpcAsyncIOTransport
 
-
 __all__ = (
     "ConnectionServiceTransport",
     "ConnectionServiceGrpcTransport",
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
index d39c4d1..d9a04e1 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc.py
@@ -150,6 +150,10 @@ def __init__(
                 ssl_credentials=ssl_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             self._ssl_channel_credentials = ssl_credentials
         else:
@@ -168,6 +172,10 @@ def __init__(
                 ssl_credentials=ssl_channel_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
 
         self._stubs = {}  # type: Dict[str, Callable]
@@ -194,7 +202,7 @@ def create_channel(
     ) -> grpc.Channel:
         """Create and return a gRPC channel object.
         Args:
-            address (Optionsl[str]): The host for the channel to use.
+            address (Optional[str]): The host for the channel to use.
             credentials (Optional[~.Credentials]): The
                 authorization credentials to attach to requests. These
                 credentials identify this application to the service. If
diff --git a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
index a78b085..673a50b 100644
--- a/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
+++ b/google/cloud/bigquery_connection_v1/services/connection_service/transports/grpc_asyncio.py
@@ -195,6 +195,10 @@ def __init__(
                 ssl_credentials=ssl_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             self._ssl_channel_credentials = ssl_credentials
         else:
@@ -213,6 +217,10 @@ def __init__(
                 ssl_credentials=ssl_channel_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
 
         # Run the base constructor.
diff --git a/google/cloud/bigquery_connection_v1/types/__init__.py b/google/cloud/bigquery_connection_v1/types/__init__.py
index 56d9c8b..fa8107a 100644
--- a/google/cloud/bigquery_connection_v1/types/__init__.py
+++ b/google/cloud/bigquery_connection_v1/types/__init__.py
@@ -29,7 +29,6 @@
     AwsCrossAccountRole,
 )
 
-
 __all__ = (
     "CreateConnectionRequest",
     "GetConnectionRequest",
diff --git a/synth.metadata b/synth.metadata
index f44e6e7..4e83185 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -11,8 +11,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "ae77417a40098bf64d04047760153f47daf2975f",
-        "internalRef": "339505822"
+        "sha": "dd372aa22ded7a8ba6f0e03a80e06358a3fa0907",
+        "internalRef": "347055288"
       }
     },
     {
diff --git a/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py b/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
index d095906..846fd59 100644
--- a/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
+++ b/tests/unit/gapic/bigquery_connection_v1/test_connection_service.py
@@ -2695,6 +2695,10 @@ def test_connection_service_transport_channel_mtls_with_client_cert_source(
                 ),
                 ssl_credentials=mock_ssl_cred,
                 quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             assert transport.grpc_channel == mock_grpc_channel
             assert transport._ssl_channel_credentials == mock_ssl_cred
@@ -2739,6 +2743,10 @@ def test_connection_service_transport_channel_mtls_with_adc(transport_class):
                 ),
                 ssl_credentials=mock_ssl_cred,
                 quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             assert transport.grpc_channel == mock_grpc_channel