From 1bc390a50e874f0cebd3f80c80da8c9eb737192c Mon Sep 17 00:00:00 2001
From: "Pablo A. Delgado" <pablete@gmail.com>
Date: Tue, 28 Apr 2015 11:28:23 -0700
Subject: [PATCH] Update README.md

An update is needed before installing varnish
---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index c7bffb2a1d..ccdb5057af 100644
--- a/README.md
+++ b/README.md
@@ -452,6 +452,7 @@ via the Maps API.
 Add CartoDB Varnish PPA and install it:
 ```bash
 sudo add-apt-repository  ppa:cartodb/varnish
+sudo apt-get update
 sudo apt-get install varnish=2.1.5.1-cdb1 #or any version <3.x
 ```