diff --git a/.travis.yml b/.travis.yml
index f408713..3d71595 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 sudo: required
 dist: bionic
 language: python
+services:
+  - xvfb
 python:
   - 2.7
   - 3.6