diff --git a/clusters/kubenuc/apps/postgresql/manifests/db.yaml b/clusters/kubenuc/apps/postgresql/manifests/db.yaml
index 25f7ffd..9e7eebc 100644
--- a/clusters/kubenuc/apps/postgresql/manifests/db.yaml
+++ b/clusters/kubenuc/apps/postgresql/manifests/db.yaml
@@ -11,7 +11,8 @@ spec:
   numberOfInstances: 3
   postgresql:
     version: "15"
-    max_connections: "300"
+    parameters:
+      max_connections: "300"
   resources:
     limits:
       cpu: "4"