diff --git a/.travis.yml b/.travis.yml
index 1e5a296..d493cd4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,9 @@
 language: ruby
 script: rake rspec
 rvm:
+  - 2.4.3
   - 2.3.1
-  - 2.2.5
-  - 2.1.2
 notifications:
   email:
     - ndushay@stanford.edu
-    - laneymcg@stanford.edu
     - jkeck@stanford.edu
-    - bess@stanford.edu