From b62e6dc125b35ce6550823d0dd8834f3d6c8f96f Mon Sep 17 00:00:00 2001
From: Andres Velaquez <andres@sirius.utp.edu.co>
Date: Thu, 11 Feb 2016 15:46:08 -0500
Subject: [PATCH] avoid E: Failed to fetch  error

---
 Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile b/Dockerfile
index 83e7060..22d90a5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM ipython/scipystack
 
 # Install psychopg2
+RUN apt-get update
 RUN apt-get -y install libpq-dev
 RUN pip3.4 install psycopg2