diff --git a/requirements.txt b/requirements.txt
index f9d8036..a6e7dd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@
 paramiko>=1.13.0
 netaddr>=0.7.12
 python-ceilometerclient>=1.0.6
-python-glanceclient>=0.14.0
+python-glanceclient>=0.15.0
 python-keystoneclient>=0.11.1
 python-novaclient>=2.18.0
 python-neutronclient>=2.3.6,<3
diff --git a/tempest/api/network/base.py b/tempest/api/network/base.py
index 12b2d13..10cda53 100644
--- a/tempest/api/network/base.py
+++ b/tempest/api/network/base.py
@@ -396,8 +396,11 @@
         body = cls.client.list_router_interfaces(router['id'])
         interfaces = body['ports']
         for i in interfaces:
-            cls.client.remove_router_interface_with_subnet_id(
-                router['id'], i['fixed_ips'][0]['subnet_id'])
+            try:
+                cls.client.remove_router_interface_with_subnet_id(
+                    router['id'], i['fixed_ips'][0]['subnet_id'])
+            except exceptions.NotFound:
+                pass
         cls.client.delete_router(router['id'])
 
     @classmethod