diff --git a/sync/Dockerfile b/sync/Dockerfile
index b50b306..4add938 100644
--- a/sync/Dockerfile
+++ b/sync/Dockerfile
@@ -1,14 +1,18 @@
-FROM mcr.microsoft.com/playwright:v1.47.0-jammy
-
+# Stage 1: build TypeScript
+FROM node:20-slim AS builder
 WORKDIR /app
-
 COPY package*.json ./
 RUN npm ci --include=dev
+COPY tsconfig.json ./
+COPY src ./src
+RUN npm run build
 
-# Install Chromium for Playwright
+# Stage 2: runtime with Playwright
+FROM mcr.microsoft.com/playwright:v1.47.0-jammy
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci --omit=dev
 RUN npx playwright install chromium --with-deps
-
-COPY . .
-RUN npm run build && npm prune --production
+COPY --from=builder /app/dist ./dist
 
 CMD ["node", "dist/index.js"]