diff --git a/backend/internal/bootstrap/database.go b/backend/internal/bootstrap/database.go
index ce2a677..6ebb80e 100644
--- a/backend/internal/bootstrap/database.go
+++ b/backend/internal/bootstrap/database.go
@@ -234,6 +234,7 @@ func (m *DatabaseVerificationManager) Discard(token string) error {
 		m.restoreExpiredSession(entry)
 		return errors.New("数据库临时凭据回收失败")
 	}
+	m.removeExpiredSession(entry)
 	return nil
 }