diff --git a/Dockerfile-prod b/Dockerfile-prod
index 85e5019..84f529c 100644
--- a/Dockerfile-prod
+++ b/Dockerfile-prod
@@ -6,7 +6,7 @@ ENV NODE_ENV production
 COPY package.json yarn.lock ./
 
 # install dev dependencies too
-RUN set -x && yarn --prod=false
+RUN set -x && yarn --prod=true
 
 COPY . .
 RUN set -x && yarn run prestart:prod