diff --git a/Dockerfile b/Dockerfile
index 198958c..80ff4ea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,8 +2,8 @@
 
 FROM node:24-alpine AS assets
 WORKDIR /app
-COPY package.json yarn.lock ./
-RUN corepack enable && yarn install --frozen-lockfile
+COPY package.json yarn.lock* ./
+RUN corepack enable && if [ -f yarn.lock ]; then yarn install --frozen-lockfile; else yarn install; fi
 COPY webpack.config.js ./
 COPY assets ./assets
 COPY public ./public