diff --git a/.travis.yml b/.travis.yml
index 2c9acbc..17b53cb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,7 @@
 language: ruby
 before_install: gem install bundler
 rvm:
-  - 2.1
-  - 2.2
   - 2.3
   - 2.4
   - 2.5
+  - 2.6