diff --git a/Dockerfile b/Dockerfile
index 85291f8f6..08aa53def 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,15 +30,15 @@ COPY --from=builder /app/public ./public
 COPY --from=builder /app/astro.config.mjs ./
 COPY --from=builder /app/data ./data
 
-EXPOSE 4321
+EXPOSE 80
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-  CMD node -e "require('http').get('http://localhost:4321', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
+  CMD node -e "require('http').get('http://localhost:80', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
 
 ENV NODE_ENV=production
 ENV ASTRO_DB_REMOTE_URL=file:/app/data/consent.db
-ENV PORT=4321
+ENV PORT=80
 
-# Start Astro preview server
-CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "4321"]
+# Start Astro preview server on port 80
+CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "80"]