diff --git a/postgresql/manifests/cluster.yaml b/postgresql/manifests/cluster.yaml
index c09bb74..c464747 100644
--- a/postgresql/manifests/cluster.yaml
+++ b/postgresql/manifests/cluster.yaml
@@ -8,11 +8,11 @@ spec:
   imageName: ghcr.io/cloudnative-pg/postgresql:16.6
 
   # Number of instances
-  instances: 3  # 1 primary + 2 replicas for HA
+  instances: 4  # Temporarily 4 for storage migration
 
   # Storage configuration - using local-path-retain for data protection
   storage:
-    storageClass: local-path
+    storageClass: local-path-retain
     size: 10Gi
 
   # Resource requests and limits