diff --git a/longhorn/values.yaml b/longhorn/values.yaml
index 18d5f69..13da46d 100644
--- a/longhorn/values.yaml
+++ b/longhorn/values.yaml
@@ -47,7 +47,7 @@ longhorn:
   persistence:
     defaultClass: true
     defaultFsType: ext4
-    defaultClassReplicaCount: 2
+    defaultClassReplicaCount: 1
     defaultDataLocality: disabled # best-effort otherwise
     reclaimPolicy: Retain
     migratable: false