diff --git a/functions/log/index.js b/functions/log/index.js
index 25ee10cf24..58f95f3ccc 100644
--- a/functions/log/index.js
+++ b/functions/log/index.js
@@ -27,7 +27,7 @@ exports.helloWorld = (req, res) => {
 // By default, the client will authenticate using the service account file
 // specified by the GOOGLE_APPLICATION_CREDENTIALS environment variable and use
 // the project specified by the GCLOUD_PROJECT environment variable. See
-// https://googlecloudplatform.github.io/gcloud-node/#/docs/google-cloud/latest/guides/authentication
+// https://github.com/googleapis/google-cloud-node/blob/master/docs/authentication.md
 const Logging = require('@google-cloud/logging');
 
 function getLogEntries() {
@@ -53,7 +53,7 @@ function getLogEntries() {
 // By default, the client will authenticate using the service account file
 // specified by the GOOGLE_APPLICATION_CREDENTIALS environment variable and use
 // the project specified by the GCLOUD_PROJECT environment variable. See
-// https://googlecloudplatform.github.io/gcloud-node/#/docs/google-cloud/latest/guides/authentication
+// https://github.com/googleapis/google-cloud-node/blob/master/docs/authentication.md
 const Monitoring = require('@google-cloud/monitoring');
 
 function getMetrics(callback) {