diff --git a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/proto/common_pb2.py b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/proto/common_pb2.py
index a14be15ccf04..f4d3a879952e 100644
--- a/packages/google-cloud-monitoring/google/cloud/monitoring_v3/proto/common_pb2.py
+++ b/packages/google-cloud-monitoring/google/cloud/monitoring_v3/proto/common_pb2.py
@@ -771,4 +771,3 @@
 DESCRIPTOR._options = None
 _SERVICETIER._options = None
 # @@protoc_insertion_point(module_scope)
-# -*- coding: utf-8 -*-
diff --git a/packages/google-cloud-monitoring/synth.metadata b/packages/google-cloud-monitoring/synth.metadata
index 4dc0fc943241..28b2a905b246 100644
--- a/packages/google-cloud-monitoring/synth.metadata
+++ b/packages/google-cloud-monitoring/synth.metadata
@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-01-24T05:50:25.632152Z",
+  "updateTime": "2019-01-30T13:25:33.687294Z",
   "sources": [
     {
       "generator": {
@@ -12,8 +12,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "9aac88a22468b1e291937f55fa1ef237adfdc63e",
-        "internalRef": "230568136"
+        "sha": "f0195b40fd5f5f412e6819ac01df08cedb8e5fd7",
+        "internalRef": "231440809"
       }
     },
     {