diff --git a/chat-ui/Dockerfile b/chat-ui/Dockerfile
index 2553384..0ec2060 100644
--- a/chat-ui/Dockerfile
+++ b/chat-ui/Dockerfile
@@ -3,6 +3,6 @@ WORKDIR /app
 COPY package.json package-lock.json* ./
 RUN npm install --production
 COPY . .
-RUN npm run build
+RUN npm install && npm run build && npm prune --production
 EXPOSE 3000
 CMD ["node","dist/server.js"]