diff --git a/.travis.yml b/.travis.yml
index d2a68a90..dd893e16 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ language: ruby
 sudo: false
 
 rvm:      
-  - 2.4
+  - 2.3
 
 install: 'echo skip bundle install'