From dc910107cfc4cb5332ddaabd9d295e4c36e88c85 Mon Sep 17 00:00:00 2001
From: Steve Kamerman <stevekamerman@gmail.com>
Date: Mon, 5 Dec 2016 09:21:39 -0500
Subject: [PATCH] Upgrade docker-engine and allow downgrades

---
 .travis.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index e850f08..ea2de37 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,13 +4,13 @@ services:
 
 env:
     global:
-        - DOCKER_VERSION=1.12.1-0~trusty
+        - DOCKER_VERSION=1.12.3-0~trusty
 
 before_install:
   # list docker-engine versions
   - apt-cache madison docker-engine
   # upgrade docker-engine to specific version
-  - sudo apt-get -o Dpkg::Options::="--force-confnew" install -y docker-engine=${DOCKER_VERSION}
+  - sudo apt-get -o Dpkg::Options::="--force-confnew" install -y --allow-downgrades docker-engine=${DOCKER_VERSION}
   - docker version
   - docker info
   - sudo add-apt-repository ppa:duggan/bats --yes