diff --git a/kubernetes/main/apps/databases/cloudnative-pg/config/cluster.yaml b/kubernetes/main/apps/databases/cloudnative-pg/config/cluster.yaml
index 6a26fec0fa..f05338bcb8 100644
--- a/kubernetes/main/apps/databases/cloudnative-pg/config/cluster.yaml
+++ b/kubernetes/main/apps/databases/cloudnative-pg/config/cluster.yaml
@@ -5,7 +5,7 @@ metadata:
   name: postgres
   namespace: databases
 spec:
-  instances: 4
+  instances: 5
 
   imageName: ghcr.io/tensorchord/cloudnative-pgvecto.rs:16.2-v0.2.1