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 da83e37e..599888a3 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
@@ -179,7 +179,7 @@ async def get_data_source(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -264,7 +264,7 @@ async def list_data_sources(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -532,7 +532,7 @@ async def delete_transfer_config(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -617,7 +617,7 @@ async def get_transfer_config(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -701,7 +701,7 @@ async def list_transfer_configs(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -936,7 +936,7 @@ async def get_transfer_run(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -1012,7 +1012,7 @@ async def delete_transfer_run(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -1098,7 +1098,7 @@ async def list_transfer_runs(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -1189,7 +1189,7 @@ async def list_transfer_logs(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
@@ -1288,7 +1288,7 @@ async def check_valid_creds(
                 maximum=60.0,
                 multiplier=1.3,
                 predicate=retries.if_exception_type(
-                    exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                    exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                 ),
             ),
             default_timeout=20.0,
diff --git a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/base.py b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/base.py
index 8d2f4569..3633ae8e 100644
--- a/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/base.py
+++ b/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/base.py
@@ -115,7 +115,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -128,7 +128,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -151,7 +151,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -164,7 +164,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -177,7 +177,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -200,7 +200,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -213,7 +213,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -226,7 +226,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -239,7 +239,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
@@ -252,7 +252,7 @@ def _prep_wrapped_messages(self, client_info):
                     maximum=60.0,
                     multiplier=1.3,
                     predicate=retries.if_exception_type(
-                        exceptions.ServiceUnavailable, exceptions.DeadlineExceeded,
+                        exceptions.DeadlineExceeded, exceptions.ServiceUnavailable,
                     ),
                 ),
                 default_timeout=20.0,
diff --git a/synth.metadata b/synth.metadata
index 759f6ddb..9d2d4f89 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-bigquery-datatransfer.git",
-        "sha": "b95441140f7c86dd3e833aef0532badd6280ef48"
+        "sha": "bbe50e659e45f4f5674de6fc04ff028a04f3909b"
       }
     },
     {