diff --git a/Dockerfile b/Dockerfile
index 9de01c9..6cde844 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM node:8-alpine
 WORKDIR /app
 COPY package.json /app
-RUN yarn install --frozen-lockfile
+RUN yarn install --pure-lockfile
 COPY . /app
 CMD npm run watch
 EXPOSE 8080
\ No newline at end of file