diff --git a/generated/google/apis/youtube_v3.rb b/generated/google/apis/youtube_v3.rb
index fe23e956c..fd41f6d04 100644
--- a/generated/google/apis/youtube_v3.rb
+++ b/generated/google/apis/youtube_v3.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://developers.google.com/youtube/v3
     module YoutubeV3
       VERSION = 'V3'
-      REVISION = '20171129'
+      REVISION = '20171215'
 
       # Manage your YouTube account
       AUTH_YOUTUBE = 'https://www.googleapis.com/auth/youtube'
diff --git a/generated/google/apis/youtube_v3/classes.rb b/generated/google/apis/youtube_v3/classes.rb
index de1c82e49..82f0e3916 100644
--- a/generated/google/apis/youtube_v3/classes.rb
+++ b/generated/google/apis/youtube_v3/classes.rb
@@ -6963,11 +6963,6 @@ module Google
       class Video
         include Google::Apis::Core::Hashable
       
-        # The access token to uniquely identify a revocable unlisted video.
-        # Corresponds to the JSON property `accessToken`
-        # @return [String]
-        attr_accessor :access_token
-      
         # Age restriction details related to a video. This data can only be retrieved by
         # the video owner.
         # Corresponds to the JSON property `ageGating`
@@ -7072,7 +7067,6 @@ module Google
       
         # Update properties of this object
         def update!(**args)
-          @access_token = args[:access_token] if args.key?(:access_token)
           @age_gating = args[:age_gating] if args.key?(:age_gating)
           @content_details = args[:content_details] if args.key?(:content_details)
           @etag = args[:etag] if args.key?(:etag)
diff --git a/generated/google/apis/youtube_v3/representations.rb b/generated/google/apis/youtube_v3/representations.rb
index 6df4c5463..5f62957dd 100644
--- a/generated/google/apis/youtube_v3/representations.rb
+++ b/generated/google/apis/youtube_v3/representations.rb
@@ -2903,7 +2903,6 @@ module Google
       class Video
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
-          property :access_token, as: 'accessToken'
           property :age_gating, as: 'ageGating', class: Google::Apis::YoutubeV3::VideoAgeGating, decorator: Google::Apis::YoutubeV3::VideoAgeGating::Representation
       
           property :content_details, as: 'contentDetails', class: Google::Apis::YoutubeV3::VideoContentDetails, decorator: Google::Apis::YoutubeV3::VideoContentDetails::Representation