diff --git a/duo_client/admin.py b/duo_client/admin.py
index 491c60c..5dc029e 100644
--- a/duo_client/admin.py
+++ b/duo_client/admin.py
@@ -2956,6 +2956,7 @@ def add_admin(self, name, email, phone, password, role=None, subaccount_role=Non
         phone - <str:phone number>
         password - Deprecated; ignored if specified.
         role - <str|None:role>
+        subaccount_role - <str|None:role>
 
         Returns the added administrator.  See the adminapi docs.
 
@@ -2981,6 +2982,8 @@ def update_admin(self, admin_id,
                      password=None,
                      password_change_required=None,
                      status=None,
+                     role=None,
+                     subaccount_role=None
                      ):
         """
         Update one or more attributes of an administrator.
@@ -2991,6 +2994,8 @@ def update_admin(self, admin_id,
         password - Deprecated; ignored if specified.
         password_change_required - <bool|None:Whether admin is required to change their password at next login> (optional)
         status - the status of the administrator (optional) - NOTE: Valid values are "Active" and "Disabled" - "Disabled" NOT valid for administrators with role - Owner
+        role - <str|None:role> (optional)
+        subaccount_role - <str|None:role> (optional)
 
         Returns the updated administrator.  See the adminapi docs.
 
@@ -3007,6 +3012,10 @@ def update_admin(self, admin_id,
             params['password_change_required'] = password_change_required
         if status is not None:
             params['status'] = status
+        if role is not None:
+            params['role'] = role
+        if subaccount_role is not None:
+            params['subaccount_role'] = subaccount_role
         response = self.json_api_call('POST', path, params)
         return response
 
diff --git a/examples/Admin/create_admin.py b/examples/Admin/create_admin.py
index dd3aeca..71f59e6 100644
--- a/examples/Admin/create_admin.py
+++ b/examples/Admin/create_admin.py
@@ -22,8 +22,8 @@ def get_next_arg(prompt):
 EMAIL = get_next_arg('Email: ')
 PHONE = get_next_arg('Phone number (e.g. 2154567890): ')
 PASSWORD = get_next_arg('Password: ')
-ROLE = get_next_arg('Administrative Role: ')
-SUBACCOUNT_ROLE = get_next_arg('Subaccount Role: ')
+ROLE = get_next_arg('Administrative Role(Optional): ') or None
+SUBACCOUNT_ROLE = get_next_arg('Subaccount Role(Optional): ') or None
 
 created_admin = admin_api.add_admin(NAME, EMAIL, PHONE, PASSWORD, ROLE, SUBACCOUNT_ROLE)
 print('Created Admin: ')
diff --git a/examples/Admin/update_admin.py b/examples/Admin/update_admin.py
new file mode 100644
index 0000000..093e70d
--- /dev/null
+++ b/examples/Admin/update_admin.py
@@ -0,0 +1,37 @@
+#!/usr/bin/python
+import pprint
+import sys
+
+import duo_client
+
+argv_iter = iter(sys.argv[1:])
+def get_next_arg(prompt):
+    try:
+        return next(argv_iter)
+    except StopIteration:
+        return input(prompt)
+    
+# Configuration and information about objects to create.
+admin_api = duo_client.Admin(
+    ikey=get_next_arg('Admin API integration key ("DI..."): '),
+    skey=get_next_arg('integration secret key: '),
+    host=get_next_arg('API hostname ("api-....duosecurity.com"): '),
+)
+
+ADMIN_ID = get_next_arg('Admin Id: ')
+NAME = get_next_arg('Admin name: ') or None
+PHONE = get_next_arg('Phone number (e.g. 2154567890): ') or None
+PASSWORD_CHANGE_REQ = get_next_arg('password_change_required: ') or None
+STATUS = get_next_arg('status: ') or None
+ROLE = get_next_arg('Administrative Role(Optional): ') or None
+SUBACCOUNT_ROLE = get_next_arg('Subaccount Role(Optional): ') or None
+
+updated_admin = admin_api.update_admin(admin_id=ADMIN_ID, 
+                                       name=NAME, 
+                                       phone=PHONE, 
+                                       password_change_required=PASSWORD_CHANGE_REQ, 
+                                       status=STATUS, 
+                                       role=ROLE, 
+                                       subaccount_role=SUBACCOUNT_ROLE)
+print('Updated Admin: ')
+pprint.pprint(updated_admin)
diff --git a/tests/admin/test_admins.py b/tests/admin/test_admins.py
index df9a78a..2dad9b9 100644
--- a/tests/admin/test_admins.py
+++ b/tests/admin/test_admins.py
@@ -217,3 +217,42 @@ def test_create_admin_with_subaccount_role(self):
                 'role': 'test-role',
                 'subaccount_role': 'test-subaccount-role',
             })
+
+    def test_update_admin_pass_all_params(self):
+        response = self.client.update_admin('test-id', 'test-name1', 'test-phone', None, False, 'test-status', 'test-role', 'test-subaccount-role')
+        self.assertEqual(response['method'], 'POST')
+        self.assertEqual(response['uri'], '/admin/v1/admins/test-id')
+        self.assertEqual(
+            json.loads(response['body']),
+            {
+                'account_id': self.client.account_id,
+                'name': 'test-name1',
+                'password_change_required': False,
+                'phone': 'test-phone',
+                'role': 'test-role',
+                'status': 'test-status',
+                'subaccount_role': 'test-subaccount-role',
+            })
+        
+    def test_update_admin_pass_two_optional_params(self):
+        response = self.client.update_admin(admin_id='test-id', name='test-name2', status='test-status')
+        self.assertEqual(response['method'], 'POST')
+        self.assertEqual(response['uri'], '/admin/v1/admins/test-id')
+        self.assertEqual(
+            json.loads(response['body']),
+            {
+                'account_id': self.client.account_id,
+                'name': 'test-name2',
+                'status': 'test-status',
+            })
+    
+    def test_update_admin_pass_one_optional_param(self):
+        response = self.client.update_admin(admin_id='test-id', name='test-name3')
+        self.assertEqual(response['method'], 'POST')
+        self.assertEqual(response['uri'], '/admin/v1/admins/test-id')
+        self.assertEqual(
+            json.loads(response['body']),
+            {
+                'account_id': self.client.account_id,
+                'name': 'test-name3',
+            })