diff --git a/.travis.yml b/.travis.yml
index 363208f..3969f39 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,12 @@ cache: pip
 python:
   - '2.7'
   - '3.6'
-  - '3.7'
+
+matrix:
+  include:
+  - python: 3.7
+    dist: xenial
+    sudo: true
 
 install:
   - pip install -U pip setuptools
@@ -14,5 +19,3 @@ install:
 script:
   - python setup.py test
   - flake8 disco/
-
-dist: xenial