downgrade node_js to 11.10.1 due to a bug in Jest

oliverlaz · web-flow · commit c7073d7d03f0 · 2019-03-12T23:47:08.000+01:00
facebook/create-react-app#6591
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 language: node_js
 
 node_js:
-  node
+  - "11.10.1"
 
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash
