diff --git a/Dockerfile b/Dockerfile
index 8cb9318e2..2685444c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,9 +4,7 @@ WORKDIR /frontend-build
 
 COPY ./web/ .
 
-RUN npm config rm proxy
-RUN npm config rm https-proxy
-RUN yarn install --no-lockfile
+RUN yarn
 RUN yarn build
 
 # Build backend exec file.