diff --git a/.travis.yml b/.travis.yml
index 5dffd0d..42f52b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 # R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
 language: R
-dist: trusty
 cache: packages
 latex: false