diff --git a/minecraft-server/Dockerfile b/minecraft-server/Dockerfile
index e0ecea9a..ccbbfed8 100644
--- a/minecraft-server/Dockerfile
+++ b/minecraft-server/Dockerfile
@@ -2,7 +2,9 @@ FROM itzg/ubuntu-openjdk-7
 
 MAINTAINER itzg
 
+ENV APT_GET_UPDATE 2015-03-28
 RUN apt-get update
+
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y libmozjs-24-bin imagemagick && apt-get clean
 RUN update-alternatives --install /usr/bin/js js /usr/bin/js24 100