diff --git a/msal/application.py b/msal/application.py
index b5911c98..c91587c7 100644
--- a/msal/application.py
+++ b/msal/application.py
@@ -271,7 +271,8 @@ def _get_authority_aliases(self, instance):
         if not self.authority_groups:
             resp = requests.get(
                 "https://login.microsoftonline.com/common/discovery/instance?api-version=1.1&authorization_endpoint=https://login.microsoftonline.com/common/oauth2/authorize",
-                headers={'Accept': 'application/json'})
+                headers={'Accept': 'application/json'},
+                verify=self.verify, proxies=self.proxies, timeout=self.timeout)
             resp.raise_for_status()
             self.authority_groups = [
                 set(group['aliases']) for group in resp.json()['metadata']]