diff --git a/Dockerfile b/Dockerfile
index 1eed0db..ea04935 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM ubuntu:14.04.3
+FROM ubuntu:14.04
 
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get -y upgrade \
     && DEBIAN_FRONTEND=noninteractive apt-get -y install strongswan iptables uuid-runtime \
-    && rm -rf /var/lib/apt/lists/* # cache busted 20151128.1
+    && rm -rf /var/lib/apt/lists/* # cache busted 20160406.1
 
 RUN rm /etc/ipsec.secrets