diff --git a/generated/google/apis/pubsub_v1.rb b/generated/google/apis/pubsub_v1.rb
index abfe2c814..fdf5443c5 100644
--- a/generated/google/apis/pubsub_v1.rb
+++ b/generated/google/apis/pubsub_v1.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/pubsub/docs
     module PubsubV1
       VERSION = 'V1'
-      REVISION = '20180416'
+      REVISION = '20180423'
 
       # 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/pubsub_v1/classes.rb b/generated/google/apis/pubsub_v1/classes.rb
index 5e2fff4c2..52f3272eb 100644
--- a/generated/google/apis/pubsub_v1/classes.rb
+++ b/generated/google/apis/pubsub_v1/classes.rb
@@ -53,7 +53,7 @@ module Google
         # * `allAuthenticatedUsers`: A special identifier that represents anyone
         # who is authenticated with a Google account or a service account.
         # * `user:`emailid``: An email address that represents a specific Google
-        # account. For example, `alice@gmail.com` or `joe@example.com`.
+        # account. For example, `alice@gmail.com` .
         # * `serviceAccount:`emailid``: An email address that represents a service
         # account. For example, `my-other-app@appspot.gserviceaccount.com`.
         # * `group:`emailid``: An email address that represents a Google group.
diff --git a/generated/google/apis/pubsub_v1beta1a.rb b/generated/google/apis/pubsub_v1beta1a.rb
index c15497484..e17a7b645 100644
--- a/generated/google/apis/pubsub_v1beta1a.rb
+++ b/generated/google/apis/pubsub_v1beta1a.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/pubsub/docs
     module PubsubV1beta1a
       VERSION = 'V1beta1a'
-      REVISION = '20180402'
+      REVISION = '20180423'
 
       # 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/pubsub_v1beta2.rb b/generated/google/apis/pubsub_v1beta2.rb
index fbc8a35c9..0e2ee13aa 100644
--- a/generated/google/apis/pubsub_v1beta2.rb
+++ b/generated/google/apis/pubsub_v1beta2.rb
@@ -25,7 +25,7 @@ module Google
     # @see https://cloud.google.com/pubsub/docs
     module PubsubV1beta2
       VERSION = 'V1beta2'
-      REVISION = '20180416'
+      REVISION = '20180423'
 
       # 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/pubsub_v1beta2/classes.rb b/generated/google/apis/pubsub_v1beta2/classes.rb
index 94b195153..684e4b4c8 100644
--- a/generated/google/apis/pubsub_v1beta2/classes.rb
+++ b/generated/google/apis/pubsub_v1beta2/classes.rb
@@ -53,7 +53,7 @@ module Google
         # * `allAuthenticatedUsers`: A special identifier that represents anyone
         # who is authenticated with a Google account or a service account.
         # * `user:`emailid``: An email address that represents a specific Google
-        # account. For example, `alice@gmail.com` or `joe@example.com`.
+        # account. For example, `alice@gmail.com` .
         # * `serviceAccount:`emailid``: An email address that represents a service
         # account. For example, `my-other-app@appspot.gserviceaccount.com`.
         # * `group:`emailid``: An email address that represents a Google group.