diff --git a/tools/gate/files/heat-public-net-deployment.yaml b/tools/gate/files/heat-public-net-deployment.yaml
index 386de5722a..055eb49f97 100644
--- a/tools/gate/files/heat-public-net-deployment.yaml
+++ b/tools/gate/files/heat-public-net-deployment.yaml
@@ -39,5 +39,4 @@ resources:
       gateway_ip: {get_param: subnet_gateway}
       enable_dhcp: false
       dns_nameservers:
-        - 8.8.8.8
-        - 8.8.4.4
+        - 10.96.0.10