diff --git a/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.conf b/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.conf
index 6e8e8f574c..dd8d3d80d1 100644
--- a/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.conf
+++ b/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.conf
@@ -195,8 +195,8 @@ gNBs =
 
     NETWORK_INTERFACES :
     {
-        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.130";
-        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.130";
+        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.131";
+        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.131";
         GNB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };