diff --git a/Dockerfile b/Dockerfile
index 7f8477e..3a05d5b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ EXPOSE 3000
 FROM base as builder
 WORKDIR /app
 COPY . .
-RUN yarn install
+RUN yarn install --immutable
 RUN yarn build
 
 FROM base as production
@@ -15,11 +15,8 @@ WORKDIR /app
 ENV NODE_ENV=production
 COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
 COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app/.yarn ./.yarn
-COPY --from=builder /app/yarnrc.yml ./yarnrc.yml
 COPY --from=builder /app/package.json ./package.json
 COPY --from=builder /app/public ./public
-RUN yarn install --immutable
 RUN addgroup -g 1001 -S nodejs
 RUN adduser -S nextjs -u 1001
 USER nextjs
@@ -28,5 +25,5 @@ CMD yarn start
 FROM base as dev
 ENV NODE_ENV=development
 COPY . .
-RUN yarn install
+RUN yarn install --immutable
 CMD yarn dev