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 67e81a4..f98b8b0 100644
--- a/chart/environment-values/values.openwifi-qa.single-external-db.yaml
+++ b/chart/environment-values/values.openwifi-qa.single-external-db.yaml
@@ -66,6 +66,7 @@ postgresql-ha:
     postgresPassword: postgres
     repmgrPassword: repmgr
     maxConnections: 1000
+    sharedBuffers: 50MB
     resources:
       requests:
         cpu: 250m