diff --git a/cmd/pushback/README b/cmd/pushback/README
index a37470b9..7e3247aa 100644
--- a/cmd/pushback/README
+++ b/cmd/pushback/README
@@ -1,5 +1,9 @@
 This service runs as a Google Managed VM.
 Use the gcloud tool to deploy:
 
-$ gcloud --project symbolic-datum-552 preview app deploy --set-default app.yaml
+$ gcloud --project symbolic-datum-552 preview app deploy --no-promote app.yaml
+
+Then use the Cloud Console to set the new version as the default,
+and delete the old instance (lest it keep running):
+https://cloud.google.com/console/appengine/versions?project=symbolic-datum-552&moduleId=pushback