diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
index bfb8c10..51611e6 100644
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -39,3 +39,6 @@ services:
       interval: 5s
       timeout: 5s
       retries: 5
+
+volumes:
+  tianji-db-data: