diff --git a/kmip/services/server/engine.py b/kmip/services/server/engine.py
index 7b110d9..d12489d 100644
--- a/kmip/services/server/engine.py
+++ b/kmip/services/server/engine.py
@@ -107,6 +107,7 @@ class KmipEngine(object):
         self._id_placeholder = None
 
         self._protocol_versions = [
+            contents.ProtocolVersion(2, 0),
             contents.ProtocolVersion(1, 4),
             contents.ProtocolVersion(1, 3),
             contents.ProtocolVersion(1, 2),
@@ -114,8 +115,8 @@ class KmipEngine(object):
             contents.ProtocolVersion(1, 0)
         ]
 
-        self.default_protocol_version = self._protocol_versions[2]
-        self._protocol_version = self._protocol_versions[2]
+        self.default_protocol_version = self._protocol_versions[3]
+        self._protocol_version = self._protocol_versions[3]
 
         self._object_map = {
             enums.ObjectType.CERTIFICATE: objects.X509Certificate,
diff --git a/kmip/tests/unit/services/server/test_engine.py b/kmip/tests/unit/services/server/test_engine.py
index a9a3ec8..847888d 100644
--- a/kmip/tests/unit/services/server/test_engine.py
+++ b/kmip/tests/unit/services/server/test_engine.py
@@ -6713,27 +6713,31 @@ class TestKmipEngine(testtools.TestCase):
             payloads.DiscoverVersionsResponsePayload
         )
         self.assertIsNotNone(result.protocol_versions)
-        self.assertEqual(5, len(result.protocol_versions))
+        self.assertEqual(6, len(result.protocol_versions))
         self.assertEqual(
-            contents.ProtocolVersion(1, 4),
+            contents.ProtocolVersion(2, 0),
             result.protocol_versions[0]
         )
         self.assertEqual(
-            contents.ProtocolVersion(1, 3),
+            contents.ProtocolVersion(1, 4),
             result.protocol_versions[1]
         )
         self.assertEqual(
-            contents.ProtocolVersion(1, 2),
+            contents.ProtocolVersion(1, 3),
             result.protocol_versions[2]
         )
         self.assertEqual(
-            contents.ProtocolVersion(1, 1),
+            contents.ProtocolVersion(1, 2),
             result.protocol_versions[3]
         )
         self.assertEqual(
-            contents.ProtocolVersion(1, 0),
+            contents.ProtocolVersion(1, 1),
             result.protocol_versions[4]
         )
+        self.assertEqual(
+            contents.ProtocolVersion(1, 0),
+            result.protocol_versions[5]
+        )
 
         # Test detailed request.
         e._logger = mock.MagicMock()