diff --git a/backend/entrypoint.sh b/backend/entrypoint.sh
old mode 100644
new mode 100755
diff --git a/docker-compose.yml b/docker-compose.yml
index 558d073..069169a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,6 +3,7 @@ services:
     image: minio/minio:latest
     command: server /data --console-address ":9001"
     ports:
+      - "9000:9000"    # MinIO S3 API
       - "9001:9001"    # MinIO Console — available at http://localhost:9001 (admin UI)
     volumes:
       - minio_data:/data