diff --git a/.travis.yml b/.travis.yml
index 030b4a4..b045fae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,6 @@ node_js:
     - "4"
     - "6"
     - "8"
+    - "9"
+    - "10"
+    - "11"