diff --git a/generated/google/apis/androidmanagement_v1.rb b/generated/google/apis/androidmanagement_v1.rb
index 92f4b5820..d37c8d73c 100644
--- a/generated/google/apis/androidmanagement_v1.rb
+++ b/generated/google/apis/androidmanagement_v1.rb
@@ -26,7 +26,7 @@ module Google
     # @see https://developers.google.com/android/management
     module AndroidmanagementV1
       VERSION = 'V1'
-      REVISION = '20170911'
+      REVISION = '20170918'
 
       # Manage Android devices and apps for your customers
       AUTH_ANDROIDMANAGEMENT = 'https://www.googleapis.com/auth/androidmanagement'
diff --git a/generated/google/apis/androidmanagement_v1/classes.rb b/generated/google/apis/androidmanagement_v1/classes.rb
index 813421255..9c499c8f3 100644
--- a/generated/google/apis/androidmanagement_v1/classes.rb
+++ b/generated/google/apis/androidmanagement_v1/classes.rb
@@ -1140,8 +1140,8 @@ module Google
         # @return [String]
         attr_accessor :field_path
       
-        # If package_name is set and the non-compliance reason is APP_NOT_INSTALLED, the
-        # detailed reason the app cannot be installed.
+        # If package_name is set and the non-compliance reason is APP_NOT_INSTALLED or
+        # APP_NOT_UPDATED, the detailed reason the app cannot be installed or updated.
         # Corresponds to the JSON property `installationFailureReason`
         # @return [String]
         attr_accessor :installation_failure_reason