diff --git a/cloudnative-pg/Cluster/shared-cluster.yaml b/cloudnative-pg/Cluster/shared-cluster.yaml
index 04e41fa..6ed2e0c 100644
--- a/cloudnative-pg/Cluster/shared-cluster.yaml
+++ b/cloudnative-pg/Cluster/shared-cluster.yaml
@@ -5,7 +5,7 @@ metadata:
   namespace: cloudnative-pg
 spec:
   imageName: ghcr.io/cloudnative-pg/postgis:18-3-system-trixie
-  instances: 3
+  instances: 2
   managed:
     roles:
       - login: true