diff --git a/Dockerfile b/Dockerfile
index a023345..df51881 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
-FROM ubuntu
-MAINTAINER Christian Lück <christian@lueck.tv>
+FROM ubuntu:14.04
+MAINTAINER Hanjo Meinhardt <hanjo@bunix.de>
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
   nginx supervisor php5-fpm php5-cli php5-curl php5-gd php5-json \