diff --git a/.travis.yml b/.travis.yml
index 7bc5e86..b72b46d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,9 +9,13 @@ node_js:
   - '8'
   - '7'
 before_script:
+  - greenkeeper-lockfile-update
   - npm prune
 after_success:
   - npm run semantic-release
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/
+before_install:
+  - npm install -g npm@5
+  - npm install -g greenkeeper-lockfile@1