+++ docker/web-build/Dockerfile
@@ -1,9 +1,10 @@
-FROM ubuntu:16.04
+FROM ubuntu:18.04
 
 MAINTAINER "Christian Weiske" <weiske@mogic.com>
 
 ENV TERM=xterm\
-    TZ=Europe/Berlin
+    TZ=Europe/Berlin\
+    DEBIAN_FRONTEND=noninteractive