diff --git a/deploy/cloudnativepg/postgres-base.yaml b/deploy/cloudnativepg/postgres-base.yaml
index 9b3186b..4867d26 100644
--- a/deploy/cloudnativepg/postgres-base.yaml
+++ b/deploy/cloudnativepg/postgres-base.yaml
@@ -6,6 +6,6 @@ metadata:
 spec:
   instances: 3
   storage:
-    size: 10Gi
+    size: 20Gi
     storageClass: longhorn
   enableSuperuserAccess: true