diff --git a/.travis.yml b/.travis.yml
index 13dcd56..92209cc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,11 @@
 language: node_js
 node_js:
-- '7.7'
+  - '7.7'
+cache:
+  directories:
+    - $HOME/.npm
+    - node_modules
+before_script:
+  - 'npm prune'
+after_success:
+  - npm run coveralls