diff --git a/.travis.yml b/.travis.yml
index 030dce1..bfb6689 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: node_js
 node_js:
-  - "6.10"
+  - "8.1"
 script: "npm run test && npm run bench"
+cache: yarn