diff --git a/Dockerfile b/Dockerfile
index 25f9a86..4939a72 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,9 @@
 FROM node:15.5.1-alpine3.12 AS build
 WORKDIR /app
-RUN npm i -g pnpm
 COPY package.json ./
-RUN pnpm i
+RUN yarn
 COPY . ./
-RUN pnpm run build
+RUN yarn build
 # final image
 FROM fholzer/nginx-brotli:v1.19.1 AS final
 COPY --from=build /app/src/.vuepress/dist /usr/share/nginx/html