diff --git a/.travis.yml b/.travis.yml
index 9eaaa3f..441ce71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,9 @@ language: node_js
 node_js:
   - "node"
   - "lts/*"
+  - "5"
+  - "6"
+  - "7"
   - "8"
 cache:
   yarn: true