diff --git a/.travis.yml b/.travis.yml
index fa8f913..0d05366 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ language: node_js
 node_js:
   - '8'
   - '6'
-  - '4'
 script: npm test
 after_success: npm run coverage
 notifications: