Responding to warnings in a government audit, congressional Democrats are calling on the Homeland Security Department to suspend a new threat alert system until the program is retooled to meet state and local needs.

Department spokesman Russ Knocke said Thursday that the department does not plan to put the program on hold.

The new system, which is to be the main way the department communicates regular threat information to local and private sector officials, has had a troubled history. The department scrapped a $91 million system, dubbed the Homeland Security Information Network or HSIN, after reports found that the program lacked critical security and structural functions that made it unworkable.

It’s been placed on life support until it can be replaced by “HSIN Next Gen,” which is due to be completed next September with an estimated price tag of $62 million.