diff --git a/.travis.yml b/.travis.yml
index 78111880c..25e649314 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ python:
   - "3.6"
 cache: pip
 # install libjpeg-dev for Pillow to handle JPEGs
+dist: trusty
 sudo: false
 addons:
   apt: