diff --git a/.travis.yml b/.travis.yml
index e3e050b..a430a52 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,6 @@
 sudo: required
 
 env:
-  global:
-    # https://github.com/travis-ci/travis-ci/issues/6461#issuecomment-239577306
-    DOCKER_VERSION: "1.9.1-0~trusty"
   matrix:
     - distro: ernestasposkus/centos7
       init: /usr/lib/systemd/systemd
@@ -22,11 +19,7 @@ services:
   - docker
 
 before_install:
-  # Downgrade to specific version of Docker engine.
   - sudo apt-get update
-  - sudo apt-get remove docker-engine -yq
-  - sudo apt-get install docker-engine=$DOCKER_VERSION -yq --no-install-suggests --no-install-recommends --force-yes -o Dpkg::Options::="--force-confnew"
-
   # Pull container.
   - 'sudo docker pull ${distro}:latest'