Representatives of software makers on Wednesday warned members of Congress against making sweeping reforms of digital copyright law as the House considers changes to the U.S. copyright system.

Appearing before a House panel, Jonathan Zuck, president of ACT | The App Association, and Christian Genetski, general counsel of the Entertainment Software Association, said lawmakers should move cautiously on any updates to the Digital Millennium Copyright Act (DMCA), which Congress passed in 1998 to prevent digital piracy. The House Judiciary Committee’s courts, intellectual property and the Internet subcommittee heard the testimony from Zuck and Genetski as part of the panel’s ongoing review of potential copyright system updates intended to foster innovation in the digital age.