diff --git a/.drone.yml b/.drone.yml
index f64e5d0..164a555 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -14,7 +14,7 @@ steps:
       - apk add yarn
       - cd themes/vikunja
       - yarn global add gulp-cli -g
-      - yarn
+      - yarn --production=false
       - gulp
 
   - name: build