diff --git a/.travis.yml b/.travis.yml
index 1eaa9da68..248eebb64 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,6 +25,7 @@ jobs:
       install:
         - cd src-ui/
         - npm install -g @angular/cli
+        - npm install
       script:
         - ng build --prod
       after_success: true