diff --git a/docs/09-bootstrapping-kubernetes-workers.md b/docs/09-bootstrapping-kubernetes-workers.md
index 077b695..da09e8a 100644
--- a/docs/09-bootstrapping-kubernetes-workers.md
+++ b/docs/09-bootstrapping-kubernetes-workers.md
@@ -14,6 +14,10 @@ gcloud compute ssh worker-0
 
 Install the OS dependencies:
 
+```
+sudo apt-get update
+```
+
 ```
 sudo apt-get -y install socat conntrack ipset
 ```