diff --git a/backend/oauth.py b/backend/oauth.py
index 6e77c9b..4d3c9d4 100644
--- a/backend/oauth.py
+++ b/backend/oauth.py
@@ -127,9 +127,10 @@
                 "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: