diff --git a/chart/environment-values/values.openwifi-qa.single-external-db.yaml b/chart/environment-values/values.openwifi-qa.single-external-db.yaml
index 99b1822..1220c36 100644
--- a/chart/environment-values/values.openwifi-qa.single-external-db.yaml
+++ b/chart/environment-values/values.openwifi-qa.single-external-db.yaml
@@ -65,7 +65,10 @@ postgresql-ha:
         memory: 1024Mi
     initdbScriptsSecret: tip-openwifi-initdb-scripts
   postgresql:
-    replicaCount: 1 # TODO change after tests
+    replicaCount: 3 # TODO change after tests
+    parameters:
+      max_connections: 30
+      shared_buffers: 256MB
     password: password
     postgresPassword: postgres
     repmgrPassword: repmgr