diff --git a/ec2api/clients.py b/ec2api/clients.py
index 6703dea9..b21b25a4 100644
--- a/ec2api/clients.py
+++ b/ec2api/clients.py
@@ -91,7 +91,10 @@ LEGACY_NOVA_API_VERSION = '2'
 # properties
 # Nova API's 2.10 microversion provides admin access to users keypairs,
 # which allows metadata service to expose openssh part of an instance key
-REQUIRED_NOVA_API_MICROVERSION = '2.10'
+# Nova API's 2.32 microversion allows 'tag' field of bdm v2, which may be
+# contained in image bdms, defined by users or autocreated with instance
+# snapshot
+REQUIRED_NOVA_API_MICROVERSION = '2.32'
 _nova_api_version = None
 
 
diff --git a/ec2api/tests/unit/test_clients.py b/ec2api/tests/unit/test_clients.py
index 06371719..1ba92dff 100644
--- a/ec2api/tests/unit/test_clients.py
+++ b/ec2api/tests/unit/test_clients.py
@@ -54,7 +54,7 @@ class ClientsTestCase(base.BaseTestCase):
                           links=[{'href': 'http://host:port/path/v2/'}])
         v2_1 = mock.NonCallableMock()
         v2_1.configure_mock(id='v2.1',
-                            version='2.11',
+                            version='2.40',
                             links=[{'href': 'http://host:port/path/v2.1/'}])
 
         # test normal flow