diff --git a/.gitignore b/.gitignore
index ba2a97b..0972d12 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 node_modules
 coverage
+package-lock.json
diff --git a/.travis.yml b/.travis.yml
index e4a99a0..4b960f2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,9 +11,12 @@ node_js:
   - "5.12"
   - "6.10"
   - "7.10"
+  - "8.4"
 sudo: false
 dist: precise
 before_install:
+  # Skip updating shrinkwrap / lock
+  - "npm config set shrinkwrap false"
   # Setup Node.js version-specific dependencies
   - "test $TRAVIS_NODE_VERSION != '0.6' || npm rm --save-dev istanbul"
   - "test $TRAVIS_NODE_VERSION != '0.8' || npm rm --save-dev istanbul"