diff --git a/.travis.yml b/.travis.yml
index 7d40a43..dd85d2d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,4 +3,8 @@
 language: r
 sudo: false
 cache: packages
-
+r:
+  - devel
+r_binary_packages:
+ - ez
+