diff --git a/compose.yaml b/compose.yaml
index e595820..aba438f 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -10,6 +10,10 @@ services:
       - ${DOCKER_GID:?Set the numeric group ID of the Docker socket}
     ports:
       - '127.0.0.1:8088:8088'
+    networks:
+      default:
+        # Keep the default gateway stable when joining runtime instance networks.
+        gw_priority: 100
     environment:
       LISTEN_ADDR: 0.0.0.0:8088
       DATA_ROOT: /data