Update travis.

tangbc · tangbc · commit 05c95a6162df · 2019-04-05T22:43:21.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,6 @@
 language: node_js
+node_js:
+  - 8
 script:
   - npm run ci
 branches:
