diff --git a/.travis.yml b/.travis.yml
index 936b00902..5810e58b8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,7 @@ install:
   - npm install webpack
   - npm i --save webpack-sources --legacy-peer-deps
   - npm install -f @types/ws@8.5.4
+  - npm install -g yarn
   - export NODE_OPTIONS="--max-old-space-size=8192"
 script:
   - npm run build:fda:prod