diff --git a/duo_client/admin.py b/duo_client/admin.py
index 7c3d316..d1b4855 100644
--- a/duo_client/admin.py
+++ b/duo_client/admin.py
@@ -178,6 +178,7 @@
 import time
 import urllib.parse
 import warnings
+from typing import List, Optional
 from datetime import datetime, timedelta, timezone
 
 from . import Accounts, client
@@ -3677,7 +3678,7 @@ def get_passport_config(self):
         response = self.json_api_call("GET", path, {})
         return response
 
-    def update_passport_config(self, enabled_status, enabled_groups=[], disabled_groups=[]):
+    def update_passport_config(self, enabled_status, enabled_groups: Optional[List[str]]=None, disabled_groups: Optional[List[str]]=None, custom_supported_browsers=None):
         """
         Update the current Passport configuration.
 
@@ -3688,7 +3689,11 @@ def update_passport_config(self, enabled_status, enabled_groups=[], disabled_gro
                 list of user group IDs for whom Passport should be enabled
             disabled_groups (list[str]) - if enabled_status is "enabled-with-exceptions",
                 a list of user group IDs for whom Passport should be disabled
+            custom_supported_browsers (dict) - a dict of criteria that determines whether 
+                a Windows or macOS browsers should be supported by Passport
         """
+        if custom_supported_browsers is None:
+            custom_supported_browsers = {"macos": [], "windows": [],}
 
         path = "/admin/v2/passport/config"
         response = self.json_api_call(
@@ -3698,6 +3703,7 @@ def update_passport_config(self, enabled_status, enabled_groups=[], disabled_gro
                 "enabled_status": enabled_status,
                 "enabled_groups": enabled_groups,
                 "disabled_groups": disabled_groups,
+                "custom_supported_browsers": custom_supported_browsers,
             },
         )
         return response
diff --git a/tests/admin/test_passport.py b/tests/admin/test_passport.py
index d4c7591..80ed15e 100644
--- a/tests/admin/test_passport.py
+++ b/tests/admin/test_passport.py
@@ -17,9 +17,10 @@ def test_get_passport(self):
     def test_update_passport(self):
         """ Test update passport configuration
         """
-        response = self.client.update_passport_config(enabled_status="enabled-for-groups", enabled_groups=["passport-test-group"])
+        response = self.client.update_passport_config(enabled_status="enabled-for-groups", enabled_groups=["passport-test-group"], custom_supported_browsers={"macos": [{"team_id": "UBF8T346G9"},], "windows": [{"common_name": "Duo Security LLC"},],})
         self.assertEqual(response["uri"], "/admin/v2/passport/config")
         body = json.loads(response["body"])
         self.assertEqual(body["enabled_status"], "enabled-for-groups")
         self.assertEqual(body["enabled_groups"], ["passport-test-group"])
-        self.assertEqual(body["disabled_groups"], [])
+        self.assertEqual(body["disabled_groups"], None)
+        self.assertEqual(body["custom_supported_browsers"], {"macos":[{"team_id":"UBF8T346G9"}],"windows":[{"common_name":"Duo Security LLC"}]})