1 files changed, 1 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
index ee72f36a89..32aeb83ea9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ rvm:
   - 2.1
   - 2.2.5
   - 2.3.1
+  - 2.4.0
   - ruby-head
 matrix:
   fast_finish: true