diff --git a/buildspec.yml b/buildspec.yml
index 4d0d1978..69a87b89 100644
--- a/buildspec.yml
+++ b/buildspec.yml
@@ -7,6 +7,7 @@ phases:
     commands:
       - echo Install deps
       - n 16
+      - npm install --global yarn
       - yarn install
   build:
     commands: