diff --git a/Dockerfile b/Dockerfile
index 5defa4e..bd2c329 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 # Generated by Cloud66 Starter
 FROM ruby:2.1.8
-MAINTAINER asghar@akbar.com
 
-RUN apt-get update -qq && apt-get install -y build-essential 
+RUN sed -i '/jessie-updates/d' /etc/apt/sources.list
+RUN apt-get update -qq && apt-get install -y build-essential
 
 ENV APP_HOME /app
 RUN mkdir $APP_HOME