diff --git a/.gitignore b/.gitignore
index c609ff45..632daedc 100755
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,6 @@ dist
 build
 style.css
 style.css.map
+
+# Error files
+yarn-error.log
diff --git a/.nvmrc b/.nvmrc
new file mode 100644
index 00000000..af557cc0
--- /dev/null
+++ b/.nvmrc
@@ -0,0 +1 @@
+v8.11.2
diff --git a/.travis.yml b/.travis.yml
index 411582d6..908707f9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,3 @@
 language: node_js
-node_js:
-  - "node"
 script:
   - npm test -- --coverage && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js