diff --git a/Replication.md b/Replication.md
index 1e3e8e2..d732d93 100644
--- a/Replication.md
+++ b/Replication.md
@@ -64,4 +64,7 @@ If one replica is missing, there are no automatic repair right away. This is to
 
 To repair the missing replicas, you can use `volume.fix.replication` in `weed shell`.
 
+## Change replication
+
+In `weed shell`, you can change a volume replication setting via `volume.configure.replication`. After that, the volume will become readonly since the replication setting is not matched. You will also need to run 'volume.fix.replication` to create missing replicas.