diff --git a/dockerfile b/dockerfile
index cf7dd50..c51f398 100644
--- a/dockerfile
+++ b/dockerfile
@@ -1,10 +1,10 @@
-FROM node:14
-
+FROM node:16.4.2-alpine3.14
+# 
 WORKDIR /app
 COPY . .
-RUN npm install
-RUN npm run build
-
+RUN yarn
+RUN yarn build
+# 
 EXPOSE 3001
 VOLUME ["/app/data"]
 CMD ["npm", "run", "start-server"]