diff --git a/classes/cluster/mcp-day01/infra/docker.yml b/classes/cluster/mcp-day01/infra/docker.yml
index ea3ddac..43dcb53 100644
--- a/classes/cluster/mcp-day01/infra/docker.yml
+++ b/classes/cluster/mcp-day01/infra/docker.yml
@@ -9,3 +9,5 @@
     host:
       insecure_registries:
       - ${_param:mcp_docker_registry}
+      options:
+        bridge: none