diff --git a/base-notebook/Dockerfile b/base-notebook/Dockerfile
index c3db4cfe..7193cf4d 100644
--- a/base-notebook/Dockerfile
+++ b/base-notebook/Dockerfile
@@ -1,9 +1,9 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-# Ubuntu 18.04 (bionic) from 2019-06-12
-# https://github.com/tianon/docker-brew-ubuntu-core/commit/3c462555392cb188830b7c91e29311b5fad90cfe
-ARG BASE_CONTAINER=ubuntu:bionic-20190612@sha256:9b1702dcfe32c873a770a32cfd306dd7fc1c4fd134adfb783db68defc8894b3c
+# Ubuntu 18.04 (bionic) from 2019-10-29
+# https://github.com/tianon/docker-brew-ubuntu-core/commit/d4313e13366d24a97bd178db4450f63e221803f1
+ARG BASE_CONTAINER=ubuntu:bionic-20191029@sha256:6e9f67fa63b0323e9a1e587fd71c561ba48a034504fb804fd26fd8800039835d
 FROM $BASE_CONTAINER
 
 LABEL maintainer="Jupyter Project <jupyter@googlegroups.com>"