diff --git a/.travis.yml b/.travis.yml
index da8c805b..77d0f6c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,16 @@
 language: node_js
 node_js:
 - '6.9'
+cache:
+  directories:
+    - node_modules
 services:
   - docker
 branches:
   only:
   - master
   - /^v\d+\.\d+(\.\d+)?(-\S*)?$/
+before_script: "npm update"
 before_deploy:
   - npm run build
 env: