ci(travis): use npm 5 in release stage

felixfbecker · felixfbecker · commit 5e5f2e708217 · 2018-03-14T15:32:28.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -61,6 +61,7 @@ jobs:
       node_js: '8'
       before_install: skip
       install:
+        - npm install -g npm@$NPM_VERSION
         - npm ci
       script:
         - npm run build
