diff --git a/backend/oauth.py b/backend/oauth.py
index 4d3c9d4..6e77c9b 100644
--- a/backend/oauth.py
+++ b/backend/oauth.py
@@ -127,10 +127,9 @@
                 "code": code,
                 "redirect_uri": public_base_url() + "/auth/x/callback",
                 "client_id": cid,
-                "client_type": "third_party_app",
-                "client_secret": csec,
                 "code_verifier": verifier,
             },
+            auth=(cid, csec),
             timeout=15,
         )
     except Exception: