diff --git a/minimal-kernel/Dockerfile b/minimal-kernel/Dockerfile index 7d8128b1..8bb37f15 100644 --- a/minimal-kernel/Dockerfile +++ b/minimal-kernel/Dockerfile @@ -1,6 +1,8 @@ # Copyright (c) Jupyter Development Team. # Distributed under the terms of the Modified BSD License. -FROM debian:jessie + +# Debian Jessie image released 2016 March 01. +FROM debian@sha256:a9c958be96d7d40df920e7041608f2f017af81800ca5ad23e327bc402626b58e MAINTAINER Jupyter Project diff --git a/minimal-notebook/Dockerfile b/minimal-notebook/Dockerfile index d4dcb368..30777f17 100644 --- a/minimal-notebook/Dockerfile +++ b/minimal-notebook/Dockerfile @@ -1,7 +1,8 @@ # Copyright (c) Jupyter Development Team. # Distributed under the terms of the Modified BSD License. -FROM debian:jessie +# Debian Jessie image released 2016 March 01. +FROM debian@sha256:a9c958be96d7d40df920e7041608f2f017af81800ca5ad23e327bc402626b58e MAINTAINER Jupyter Project