diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index 5fc5daa3..b8edda51 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -13,4 +13,4 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:8555f0e37e6261408f792bfd6635102d2da5ad73f8f09bcb24f25e6afb5fac97
+  digest: sha256:2e247c7bf5154df7f98cce087a20ca7605e236340c7d6d1a14447e5c06791bd6
diff --git a/.kokoro/requirements.in b/.kokoro/requirements.in
index 882178ce..ec867d9f 100644
--- a/.kokoro/requirements.in
+++ b/.kokoro/requirements.in
@@ -5,6 +5,6 @@ typing-extensions
 twine
 wheel
 setuptools
-nox
+nox>=2022.11.21 # required to remove dependency on py
 charset-normalizer<3
 click<8.1.0
diff --git a/.kokoro/requirements.txt b/.kokoro/requirements.txt
index fa99c129..66a2172a 100644
--- a/.kokoro/requirements.txt
+++ b/.kokoro/requirements.txt
@@ -1,6 +1,6 @@
 #
-# This file is autogenerated by pip-compile with python 3.10
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.9
+# by the following command:
 #
 #    pip-compile --allow-unsafe --generate-hashes requirements.in
 #
@@ -335,9 +335,9 @@ more-itertools==9.0.0 \
     --hash=sha256:250e83d7e81d0c87ca6bd942e6aeab8cc9daa6096d12c5308f3f92fa5e5c1f41 \
     --hash=sha256:5a6257e40878ef0520b1803990e3e22303a41b5714006c32a3fd8304b26ea1ab
     # via jaraco-classes
-nox==2022.8.7 \
-    --hash=sha256:1b894940551dc5c389f9271d197ca5d655d40bdc6ccf93ed6880e4042760a34b \
-    --hash=sha256:96cca88779e08282a699d672258ec01eb7c792d35bbbf538c723172bce23212c
+nox==2022.11.21 \
+    --hash=sha256:0e41a990e290e274cb205a976c4c97ee3c5234441a8132c8c3fd9ea3c22149eb \
+    --hash=sha256:e21c31de0711d1274ca585a2c5fde36b1aa962005ba8e9322bf5eeed16dcd684
     # via -r requirements.in
 packaging==21.3 \
     --hash=sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb \
@@ -380,10 +380,6 @@ protobuf==3.20.3 \
     #   gcp-docuploader
     #   gcp-releasetool
     #   google-api-core
-py==1.11.0 \
-    --hash=sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719 \
-    --hash=sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378
-    # via nox
 pyasn1==0.4.8 \
     --hash=sha256:39c7e2ec30515947ff4e87fb6f456dfc6e84857d34be479c9d4a4ba4bf46aa5d \
     --hash=sha256:aef77c9fb94a3ac588e87841208bdec464471d9871bd5050a287cc9a475cd0ba
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b5505621..a97b117e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.11.0"
+  ".": "3.11.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40ccb6b7..7a7d3611 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,15 @@
 
 [1]: https://pypi.org/project/google-cloud-bigquery-datatransfer/#history
 
+## [3.11.1](https://github.com/googleapis/python-bigquery-datatransfer/compare/v3.11.0...v3.11.1) (2023-03-27)
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#455](https://github.com/googleapis/python-bigquery-datatransfer/issues/455)) ([40a85d6](https://github.com/googleapis/python-bigquery-datatransfer/commit/40a85d6eb5e40ff77c054c76bbdfe8a5b821e1ef))
+* Removes deprecated sample ([#451](https://github.com/googleapis/python-bigquery-datatransfer/issues/451)) ([250acb4](https://github.com/googleapis/python-bigquery-datatransfer/commit/250acb4ec89a33c54174659d33fd7088f22f93db))
+* Replace deprecated snippet ([e2f04db](https://github.com/googleapis/python-bigquery-datatransfer/commit/e2f04db7553721610903500133553e67fe717642))
+
 ## [3.11.0](https://github.com/googleapis/python-bigquery-datatransfer/compare/v3.10.1...v3.11.0) (2023-02-28)
 
 
diff --git a/google/cloud/bigquery_datatransfer/gapic_version.py b/google/cloud/bigquery_datatransfer/gapic_version.py
index 6c2e88f2..f897ec81 100644
--- a/google/cloud/bigquery_datatransfer/gapic_version.py
+++ b/google/cloud/bigquery_datatransfer/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.11.0"  # {x-release-please-version}
+__version__ = "3.11.1"  # {x-release-please-version}
diff --git a/google/cloud/bigquery_datatransfer_v1/gapic_version.py b/google/cloud/bigquery_datatransfer_v1/gapic_version.py
index 6c2e88f2..f897ec81 100644
--- a/google/cloud/bigquery_datatransfer_v1/gapic_version.py
+++ b/google/cloud/bigquery_datatransfer_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.11.0"  # {x-release-please-version}
+__version__ = "3.11.1"  # {x-release-please-version}
diff --git a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
index b5ebe937..151ca29e 100644
--- a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
+++ b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
@@ -390,7 +390,8 @@ async def sample_list_data_sources():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.ListDataSourcesRequest, dict]]):
                 The request object. Request to list supported data
-                sources and their data transfer settings.
+                sources and their data transfer
+                settings.
             parent (:class:`str`):
                 Required. The BigQuery project id for which data sources
                 should be returned. Must be in the form:
@@ -521,13 +522,16 @@ async def sample_create_transfer_config():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.CreateTransferConfigRequest, dict]]):
                 The request object. A request to create a data transfer
-                configuration. If new credentials are needed for this
-                transfer configuration, authorization info must be
-                provided. If authorization info is provided, the
-                transfer configuration will be associated with the user
-                id corresponding to the authorization info. Otherwise,
-                the transfer configuration will be associated with the
-                calling user.
+                configuration. If new credentials are
+                needed for this transfer configuration,
+                authorization info must be provided. If
+                authorization info is provided, the
+                transfer configuration will be
+                associated with the user id
+                corresponding to the authorization info.
+                Otherwise, the transfer configuration
+                will be associated with the calling
+                user.
             parent (:class:`str`):
                 Required. The BigQuery project id where the transfer
                 configuration should be created. Must be in the format
@@ -653,8 +657,9 @@ async def sample_update_transfer_config():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.UpdateTransferConfigRequest, dict]]):
                 The request object. A request to update a transfer
-                configuration. To update the user id of the transfer
-                configuration, authorization info needs to be provided.
+                configuration. To update the user id of
+                the transfer configuration,
+                authorization info needs to be provided.
             transfer_config (:class:`google.cloud.bigquery_datatransfer_v1.types.TransferConfig`):
                 Required. Data transfer configuration
                 to create.
@@ -771,8 +776,9 @@ async def sample_delete_transfer_config():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.DeleteTransferConfigRequest, dict]]):
                 The request object. A request to delete data transfer
-                information. All associated transfer runs and log
-                messages will be deleted as well.
+                information. All associated transfer
+                runs and log messages will be deleted as
+                well.
             name (:class:`str`):
                 Required. The field will contain name of the resource
                 requested, for example:
@@ -1450,8 +1456,8 @@ async def sample_delete_transfer_run():
 
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.DeleteTransferRunRequest, dict]]):
-                The request object. A request to delete data transfer
-                run information.
+                The request object. A request to delete data transfer run
+                information.
             name (:class:`str`):
                 Required. The field will contain name of the resource
                 requested, for example:
@@ -1558,8 +1564,7 @@ async def sample_list_transfer_runs():
 
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.ListTransferRunsRequest, dict]]):
-                The request object. A request to list data transfer
-                runs.
+                The request object. A request to list data transfer runs.
             parent (:class:`str`):
                 Required. Name of transfer configuration for which
                 transfer runs should be retrieved. Format of transfer
@@ -1687,7 +1692,8 @@ async def sample_list_transfer_logs():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.ListTransferLogsRequest, dict]]):
                 The request object. A request to get user facing log
-                messages associated with data transfer run.
+                messages associated with data transfer
+                run.
             parent (:class:`str`):
                 Required. Transfer run name in the form:
                 ``projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}``
@@ -1814,13 +1820,16 @@ async def sample_check_valid_creds():
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.CheckValidCredsRequest, dict]]):
                 The request object. A request to determine whether the
-                user has valid credentials. This method is used to limit
-                the number of OAuth popups in the user interface. The
-                user id is inferred from the API call context.
-                If the data source has the Google+ authorization type,
-                this method returns false, as it cannot be determined
-                whether the credentials are already valid merely based
-                on the user id.
+                user has valid credentials. This method
+                is used to limit the number of OAuth
+                popups in the user interface. The user
+                id is inferred from the API call
+                context. If the data source has the
+                Google+ authorization type, this method
+                returns false, as it cannot be
+                determined whether the credentials are
+                already valid merely based on the user
+                id.
             name (:class:`str`):
                 Required. The data source in the form:
                 ``projects/{project_id}/dataSources/{data_source_id}``
@@ -1936,9 +1945,8 @@ async def sample_enroll_data_sources():
 
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.EnrollDataSourcesRequest, dict]]):
-                The request object. A request to enroll a set of data
-                sources so they are visible in the BigQuery UI's
-                `Transfer` tab.
+                The request object. A request to enroll a set of data sources so they are
+                visible in the BigQuery UI's ``Transfer`` tab.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
             timeout (float): The timeout for this request.
diff --git a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
index 0495d040..6a866419 100644
--- a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
+++ b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
@@ -639,7 +639,8 @@ def sample_list_data_sources():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.ListDataSourcesRequest, dict]):
                 The request object. Request to list supported data
-                sources and their data transfer settings.
+                sources and their data transfer
+                settings.
             parent (str):
                 Required. The BigQuery project id for which data sources
                 should be returned. Must be in the form:
@@ -760,13 +761,16 @@ def sample_create_transfer_config():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.CreateTransferConfigRequest, dict]):
                 The request object. A request to create a data transfer
-                configuration. If new credentials are needed for this
-                transfer configuration, authorization info must be
-                provided. If authorization info is provided, the
-                transfer configuration will be associated with the user
-                id corresponding to the authorization info. Otherwise,
-                the transfer configuration will be associated with the
-                calling user.
+                configuration. If new credentials are
+                needed for this transfer configuration,
+                authorization info must be provided. If
+                authorization info is provided, the
+                transfer configuration will be
+                associated with the user id
+                corresponding to the authorization info.
+                Otherwise, the transfer configuration
+                will be associated with the calling
+                user.
             parent (str):
                 Required. The BigQuery project id where the transfer
                 configuration should be created. Must be in the format
@@ -892,8 +896,9 @@ def sample_update_transfer_config():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.UpdateTransferConfigRequest, dict]):
                 The request object. A request to update a transfer
-                configuration. To update the user id of the transfer
-                configuration, authorization info needs to be provided.
+                configuration. To update the user id of
+                the transfer configuration,
+                authorization info needs to be provided.
             transfer_config (google.cloud.bigquery_datatransfer_v1.types.TransferConfig):
                 Required. Data transfer configuration
                 to create.
@@ -1010,8 +1015,9 @@ def sample_delete_transfer_config():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.DeleteTransferConfigRequest, dict]):
                 The request object. A request to delete data transfer
-                information. All associated transfer runs and log
-                messages will be deleted as well.
+                information. All associated transfer
+                runs and log messages will be deleted as
+                well.
             name (str):
                 Required. The field will contain name of the resource
                 requested, for example:
@@ -1652,8 +1658,8 @@ def sample_delete_transfer_run():
 
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.DeleteTransferRunRequest, dict]):
-                The request object. A request to delete data transfer
-                run information.
+                The request object. A request to delete data transfer run
+                information.
             name (str):
                 Required. The field will contain name of the resource
                 requested, for example:
@@ -1750,8 +1756,7 @@ def sample_list_transfer_runs():
 
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.ListTransferRunsRequest, dict]):
-                The request object. A request to list data transfer
-                runs.
+                The request object. A request to list data transfer runs.
             parent (str):
                 Required. Name of transfer configuration for which
                 transfer runs should be retrieved. Format of transfer
@@ -1869,7 +1874,8 @@ def sample_list_transfer_logs():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.ListTransferLogsRequest, dict]):
                 The request object. A request to get user facing log
-                messages associated with data transfer run.
+                messages associated with data transfer
+                run.
             parent (str):
                 Required. Transfer run name in the form:
                 ``projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}``
@@ -1986,13 +1992,16 @@ def sample_check_valid_creds():
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.CheckValidCredsRequest, dict]):
                 The request object. A request to determine whether the
-                user has valid credentials. This method is used to limit
-                the number of OAuth popups in the user interface. The
-                user id is inferred from the API call context.
-                If the data source has the Google+ authorization type,
-                this method returns false, as it cannot be determined
-                whether the credentials are already valid merely based
-                on the user id.
+                user has valid credentials. This method
+                is used to limit the number of OAuth
+                popups in the user interface. The user
+                id is inferred from the API call
+                context. If the data source has the
+                Google+ authorization type, this method
+                returns false, as it cannot be
+                determined whether the credentials are
+                already valid merely based on the user
+                id.
             name (str):
                 Required. The data source in the form:
                 ``projects/{project_id}/dataSources/{data_source_id}``
@@ -2098,9 +2107,8 @@ def sample_enroll_data_sources():
 
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.EnrollDataSourcesRequest, dict]):
-                The request object. A request to enroll a set of data
-                sources so they are visible in the BigQuery UI's
-                `Transfer` tab.
+                The request object. A request to enroll a set of data sources so they are
+                visible in the BigQuery UI's ``Transfer`` tab.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
             timeout (float): The timeout for this request.
diff --git a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
index 4ab502f8..87a34fa1 100644
--- a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
+++ b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
@@ -673,7 +673,6 @@ def __call__(
                 determined whether the credentials are
                 already valid merely based on the user
                 id.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -788,7 +787,6 @@ def __call__(
                 Otherwise, the transfer configuration
                 will be associated with the calling
                 user.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -901,7 +899,6 @@ def __call__(
                 information. All associated transfer
                 runs and log messages will be deleted as
                 well.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -983,7 +980,6 @@ def __call__(
                 request (~.datatransfer.DeleteTransferRunRequest):
                     The request object. A request to delete data transfer run
                 information.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1055,7 +1051,6 @@ def __call__(
                 request (~.datatransfer.EnrollDataSourcesRequest):
                     The request object. A request to enroll a set of data sources so they are
                 visible in the BigQuery UI's ``Transfer`` tab.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1238,7 +1233,6 @@ def __call__(
                 request (~.datatransfer.GetTransferConfigRequest):
                     The request object. A request to get data transfer
                 information.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1339,7 +1333,6 @@ def __call__(
                 request (~.datatransfer.GetTransferRunRequest):
                     The request object. A request to get data transfer run
                 information.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1434,7 +1427,6 @@ def __call__(
                     The request object. Request to list supported data
                 sources and their data transfer
                 settings.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1530,7 +1522,6 @@ def __call__(
                 request (~.datatransfer.ListTransferConfigsRequest):
                     The request object. A request to list data transfers
                 configured for a BigQuery project.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1627,7 +1618,6 @@ def __call__(
                     The request object. A request to get user facing log
                 messages associated with data transfer
                 run.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1817,7 +1807,6 @@ def __call__(
                 request (~.datatransfer.ScheduleTransferRunsRequest):
                     The request object. A request to schedule transfer runs
                 for a time range.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -1914,7 +1903,6 @@ def __call__(
                     request (~.datatransfer.StartManualTransferRunsRequest):
                         The request object. A request to start manual transfer
                     runs.
-
                     retry (google.api_core.retry.Retry): Designation of what errors, if any,
                         should be retried.
                     timeout (float): The timeout for this request.
@@ -2023,7 +2011,6 @@ def __call__(
                 configuration. To update the user id of
                 the transfer configuration,
                 authorization info needs to be provided.
-
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
index ff4d7442..1c451996 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-bigquery-datatransfer",
-    "version": "3.11.0"
+    "version": "3.11.1"
   },
   "snippets": [
     {
diff --git a/samples/snippets/manage_transfer_configs.py b/samples/snippets/manage_transfer_configs.py
index 6b4abd78..cd865455 100644
--- a/samples/snippets/manage_transfer_configs.py
+++ b/samples/snippets/manage_transfer_configs.py
@@ -105,14 +105,19 @@ def update_credentials_with_service_account(override_values={}):
     return transfer_config
 
 
-def schedule_backfill(override_values={}):
+def schedule_backfill_manual_transfer(override_values={}):
     # [START bigquerydatatransfer_schedule_backfill]
     import datetime
 
-    from google.cloud import bigquery_datatransfer
+    from google.cloud.bigquery_datatransfer_v1 import (
+        DataTransferServiceClient,
+        StartManualTransferRunsRequest,
+    )
 
-    transfer_client = bigquery_datatransfer.DataTransferServiceClient()
+    # Create a client object
+    client = DataTransferServiceClient()
 
+    # Replace with your transfer configuration name
     transfer_config_name = "projects/1234/locations/us/transferConfigs/abcd"
     # [END bigquerydatatransfer_schedule_backfill]
     # To facilitate testing, we replace values with alternatives
@@ -134,13 +139,22 @@ def schedule_backfill(override_values={}):
         end_time.year, end_time.month, end_time.day, tzinfo=datetime.timezone.utc
     )
 
-    response = transfer_client.schedule_transfer_runs(
-        parent=transfer_config_name,
+    requested_time_range = StartManualTransferRunsRequest.TimeRange(
         start_time=start_time,
         end_time=end_time,
     )
 
-    print("Started transfer runs:")
+    # Initialize request argument(s)
+    request = StartManualTransferRunsRequest(
+        parent=transfer_config_name,
+        requested_time_range=requested_time_range,
+    )
+
+    # Make the request
+    response = client.start_manual_transfer_runs(request=request)
+
+    # Handle the response
+    print("Started manual transfer runs:")
     for run in response.runs:
         print(f"backfill: {run.run_time} run: {run.name}")
     # [END bigquerydatatransfer_schedule_backfill]
diff --git a/samples/snippets/manage_transfer_configs_test.py b/samples/snippets/manage_transfer_configs_test.py
index 52d16dc2..5504f19c 100644
--- a/samples/snippets/manage_transfer_configs_test.py
+++ b/samples/snippets/manage_transfer_configs_test.py
@@ -50,16 +50,16 @@ def test_update_credentials_with_service_account(
     assert transfer_config_name in out
 
 
-def test_schedule_backfill(capsys, transfer_config_name):
-    runs = manage_transfer_configs.schedule_backfill(
+def test_schedule_backfill_manual_transfer(capsys, transfer_config_name):
+    runs = manage_transfer_configs.schedule_backfill_manual_transfer(
         {"transfer_config_name": transfer_config_name}
     )
     out, _ = capsys.readouterr()
-    assert "Started transfer runs:" in out
+    assert "Started manual transfer runs:" in out
     # Run IDs should include the transfer name in their path.
     assert transfer_config_name in out
-    # Check that there are runs for 5, 4, 3, and 2 days ago.
-    assert len(runs) == 4
+    # Check that there are three runs for between 2 and 5 days ago.
+    assert len(runs) == 3
 
 
 def test_delete_config(capsys, transfer_config_name):
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index bbc2a702..20d47eed 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,4 +1,4 @@
 google-cloud-bigquery==3.6.0
 google-cloud-pubsub==2.15.0
-pytest==7.2.1
+pytest==7.2.2
 mock==5.0.1
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 13e5c5de..047407db 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1 +1 @@
-google-cloud-bigquery-datatransfer==3.10.1
+google-cloud-bigquery-datatransfer==3.11.0