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 9446d08ebf..9e95918e6f 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
@@ -176,8 +176,8 @@ gNBs =
 
     NETWORK_INTERFACES :
     {
-        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.202";
-        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.202";
+        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.53";
+        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.53";
         GNB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };
 
diff --git a/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.ul-heavy.conf b/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.ul-heavy.conf
index 43207d63ec..3410875961 100644
--- a/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.ul-heavy.conf
+++ b/ci-scripts/conf_files/gnb-vnf.sa.band78.273prb.aerial.ul-heavy.conf
@@ -168,8 +168,8 @@ gNBs =
 
     NETWORK_INTERFACES :
     {
-        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.202";
-        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.202";
+        GNB_IPV4_ADDRESS_FOR_NG_AMF              = "172.21.16.53";
+        GNB_IPV4_ADDRESS_FOR_NGU                 = "172.21.16.53";
         GNB_PORT_FOR_S1U                         = 2152; # Spec 2152
     };