diff --git a/_data/navbars/reference-architectures.yml b/_data/navbars/reference-architectures.yml
index 48203378..1071e6c9 100644
--- a/_data/navbars/reference-architectures.yml
+++ b/_data/navbars/reference-architectures.yml
@@ -13,11 +13,6 @@ section:
       meta_title: Edge Cloud Deployment with 3GPP 4G LTE CUPS of EPC
       meta_description: OpenNESS is an open source edge computing platform that enables Service Providers and Enterprises to deploy applications and services on a network edge.
 
-    - title: 5G Non-Stand Alone (NSA)
-      path: /doc/reference-architectures/core-network/openness_5g_nsa
-      meta_title: Edge Cloud Deployment with 3GPP 5G Non Stand Alone
-      meta_description: OpenNESS is an open source edge computing platform that enables Service Providers and Enterprises to deploy applications and services on a network edge.
-  
     - title: Next-Gen Core (NGC)
       path: /doc/reference-architectures/core-network/openness_ngc
       meta_title: Edge Cloud Deployment with 3GPP 5G Stand Alone