Update documentation
diff --git a/docs/dyn/drive_v3.changes.html b/docs/dyn/drive_v3.changes.html
index 43855b5..0638c5b 100644
--- a/docs/dyn/drive_v3.changes.html
+++ b/docs/dyn/drive_v3.changes.html
@@ -192,6 +192,7 @@
                   # - writer
                   # - commenter
                   # - reader
+              "expirationTime": "A String", # The time at which this permission will expire (RFC 3339 date-time).
               "type": "A String", # The type of the grantee. Valid values are:
                   # - user
                   # - group