Test on Node v12
diff --git a/.travis.yml b/.travis.yml
index 4dc7f27..f810f2c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@
 node_js:
   - "8"
   - "10"
+  - "12"
 
 # Travis is pretty behind the curve on their Yarn support...
 # https://docs.travis-ci.com/user/languages/javascript-with-nodejs/#Using-a-specific-yarn-version