diff --git a/.travis.yml b/.travis.yml
index 0fedd63..5aabe0a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,12 @@
-sudo: false  # Use container-based infrastructure
+sudo: required
+services: 
+  - docker
 language: python
 python:
   - "2.7"
   - "3.4"
 before_install:
+  - docker pull ubuntu
   # Commands below copied from: http://conda.pydata.org/docs/travis.html
   # We do this conditionally because it saves us some downloading if the
   # version is the same.