Merge "Use latest Ubuntu 16.04 LTS guest image."
diff --git a/.zuul.yaml b/.zuul.yaml
index 4862822..8430f99 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -117,7 +117,7 @@
       devstack_localrc:
           PHYSICAL_NETWORK: default
           DOWNLOAD_DEFAULT_IMAGES: false
-          IMAGE_URLS: "http://cloud-images.ubuntu.com/releases/16.04/release-20170113/ubuntu-16.04-server-cloudimg-amd64-disk1.img,"
+          IMAGE_URLS: "http://cloud-images.ubuntu.com/releases/16.04/release-20180622/ubuntu-16.04-server-cloudimg-amd64-disk1.img,"
           DEFAULT_INSTANCE_TYPE: ds512M
           DEFAULT_INSTANCE_USER: ubuntu
           BUILD_TIMEOUT: 784