diff --git a/Dockerfile b/Dockerfile
index fd5bf5f..ea54b9a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,8 +7,7 @@ WORKDIR /app/frontend
 COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci
 COPY frontend/ ./
-RUN npm run build
-# Output: /app/frontend/../backend/public → /app/backend/public
+RUN npx vite build
 
 # ============================================================
 # Stage 2: Build Backend (TypeScript → JavaScript)