diff --git a/backend/app/security/idp_jwt.py b/backend/app/security/idp_jwt.py
index ade871e..2a74956 100644
--- a/backend/app/security/idp_jwt.py
+++ b/backend/app/security/idp_jwt.py
@@ -247,7 +247,7 @@ class ProviderTokenVerifier:
         except Exception as exc:
             claims = self._introspect_token(token)
             if claims:
-                logger.warning("jwt verify failed, used introspection fallback: %s", exc)
+                logger.debug("jwt verify failed, used introspection fallback: %s", exc)
             else:
                 raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="invalid_bearer_token") from exc