diff --git a/Dockerfile b/Dockerfile
index 6984e91..ed238a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,9 +2,10 @@
 FROM node:18-slim AS frontend-builder
 WORKDIR /app/frontend
 
-# Copy package config and install dependencies
-COPY frontend/package.json frontend/package-lock.json* ./
-RUN npm ci
+# Copy package.json ONLY and install dependencies from scratch
+# This avoids issues with lock files generated on different OS (e.g. Windows -> Linux)
+COPY frontend/package.json ./
+RUN npm install
 
 # Copy rest of the frontend code and build
 COPY frontend/ .