diff --git a/Dockerfile b/Dockerfile
index 3582ca4..05e2913 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -51,14 +51,7 @@ COPY . .
 
 ENV NODE_ENV=production
 
-RUN set -a \
- && . .env \
- && . .env.production \
- && . .env.staging \
- && set +a \
- && node check-env.js \
- && pnpm build
-
+RUN dotenv -e .env.local -- pnpm build
 
 # --- Stage 2: Runtime ---
 FROM node:24-alpine