diff --git a/generated/google/apis/dataflow_v1b3.rb b/generated/google/apis/dataflow_v1b3.rb
index 7043243ab..af838810d 100644
--- a/generated/google/apis/dataflow_v1b3.rb
+++ b/generated/google/apis/dataflow_v1b3.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/dataflow
     module DataflowV1b3
       VERSION = 'V1b3'
-      REVISION = '20201117'
+      REVISION = '20201204'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'
diff --git a/generated/google/apis/dataflow_v1b3/synth.metadata b/generated/google/apis/dataflow_v1b3/synth.metadata
index 3e2d7a7c9..12a8b0730 100644
--- a/generated/google/apis/dataflow_v1b3/synth.metadata
+++ b/generated/google/apis/dataflow_v1b3/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "5cf13c7513f641f61fc53c7b2adda475ab7ba41a"
+        "sha": "be4d4d16dea4b88702d73f04d330c49862506bb9"
       }
     }
   ]