diff --git a/Dockerfile b/Dockerfile
index a023345..13e6e7e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,12 @@
-FROM ubuntu
+FROM ubuntu:16.10
 MAINTAINER Christian Lück <christian@lueck.tv>
 
-RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
-  nginx supervisor php5-fpm php5-cli php5-curl php5-gd php5-json \
-  php5-pgsql php5-mysql php5-mcrypt && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get upgrade -y && apt-get install -y \
+  nginx supervisor php-fpm php-cli php-curl php-gd php-json \
+  php-pgsql php-mysql php-mcrypt && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 # enable the mcrypt module
-RUN php5enmod mcrypt
+RUN phpenmod mcrypt
 
 # add ttrss as the only nginx site
 ADD ttrss.nginx.conf /etc/nginx/sites-available/ttrss