diff --git a/dockerfile b/dockerfile
index 528875e..8bd4a59 100644
--- a/dockerfile
+++ b/dockerfile
@@ -3,7 +3,7 @@ FROM node:14 as builder
 COPY package.json .
 COPY yarn.lock .
 
-RUN yarn install
+RUN yarn install --frozen-lockfile
 
 COPY . .