diff --git a/Dockerfile b/Dockerfile
index 6b5c5da97..893328d32 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,6 @@ ENV DEBIAN_FRONTEND noninteractive
 # Resynchronize the package index files 
 RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
 RUN apt-get update
-RUN apt-get upgrade -y
 
 # Install the prerequisites
 RUN apt-get install -y build-essential libmysqlclient-dev libssl-dev libbz2-dev libpcre3-dev libdbi-perl libarchive-zip-perl libdate-manip-perl libdevice-serialport-perl libmime-perl libpcre3 libwww-perl libdbd-mysql-perl libsys-mmap-perl yasm subversion automake autoconf libjpeg-turbo8-dev libjpeg-turbo8 libtheora-dev libvorbis-dev libvpx-dev libx264-dev libmp4v2-dev ffmpeg git wget mysql-client apache2 php5 php5-mysql apache2-mpm-prefork libapache2-mod-php5 php5-cli openssh-server mysql-server libvlc-dev libvlc5 libvlccore-dev libvlccore5 vlc-data vlc libcurl4-openssl-dev