diff --git a/neutron_tempest_plugin/neutron_dynamic_routing/api/test_bgp_speaker_extensions.py b/neutron_tempest_plugin/neutron_dynamic_routing/api/test_bgp_speaker_extensions.py
index 83b283e..c5c1646 100644
--- a/neutron_tempest_plugin/neutron_dynamic_routing/api/test_bgp_speaker_extensions.py
+++ b/neutron_tempest_plugin/neutron_dynamic_routing/api/test_bgp_speaker_extensions.py
@@ -241,7 +241,7 @@
                                  address_scope_id=addr_scope1['id'],
                                  prefixes=['8.0.0.0/8'])
         self.create_subnet({'id': ext_net['id']},
-                   cidr=netaddr.IPNetwork('8.0.0.0/24'),
+                   cidr=netaddr.IPNetwork('8.1.0.0/24'),
                    ip_version=4,
                    client=self.admin_client,
                    subnetpool_id=ext_subnetpool['id'])
@@ -268,7 +268,7 @@
                                  address_scope_id=addr_scope1['id'],
                                  prefixes=['8.0.0.0/8'])
         self.create_subnet({'id': ext_net['id']},
-                   cidr=netaddr.IPNetwork('8.0.0.0/24'),
+                   cidr=netaddr.IPNetwork('8.2.0.0/24'),
                    ip_version=4,
                    client=self.admin_client,
                    subnetpool_id=ext_subnetpool['id'])