diff --git a/manifests/databases/postgres-cluster.yaml b/manifests/databases/postgres-cluster.yaml
index 74efbf5..5ec9aa9 100644
--- a/manifests/databases/postgres-cluster.yaml
+++ b/manifests/databases/postgres-cluster.yaml
@@ -5,7 +5,7 @@ metadata:
 spec:
   instances: 3
   storage:
-    size: 10Gi
+    size: 20Gi
   primaryUpdateStrategy: unsupervised
 
   managed: