diff --git a/.travis.yml b/.travis.yml
index 8bfb881..4f10de2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ python:
 sudo: required
 # https://docs.travis-ci.com/user/ci-environment/#Virtualization-environments
 
-dist: xenial
+dist: bionic
 
 addons:
     apt: