diff --git a/.travis.yml b/.travis.yml
index bffbefb..f934e75 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,15 +1,8 @@
-# Sample .travis.yml for R projects
+# R for travis: see documentation at https://docs.travis-ci.com/user/languages/r
 
 language: r
-warnings_are_errors: true
-sudo: required
-
-r_github_packages:
-  - jimhester/covr
+sudo: false
+cache: packages
 
 after_success:
   - Rscript -e 'covr::codecov()'
-
-env:
- global:
-   - CRAN: http://cran.rstudio.com
diff --git a/DESCRIPTION b/DESCRIPTION
index c7cf371..c9f5ebc 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -8,7 +8,8 @@ Depends:
 Imports:
     grid
 Suggests:
-    testthat
+    testthat,
+    covr
 License: GPL-2
 Collate:
     'add-grob.r'