diff --git a/.travis.yml b/.travis.yml
index 4aed50e..7fb18ec 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,10 @@ services:
   - mongodb
 
 rvm:
-  - 2.2.8
   - 2.3.5
-  - 2.4.2
+  - 2.4.3
   - 2.5.3
+  - 2.6.0
   - ruby-head
 
 matrix: