The New South Wales Department of Services, Technology and Administration said that it would be handling the catalogue refresh in tandem with the Government Chief Information Office.
Interested parties are invited to submit their requests through the department's online contact form.
The New South Wales data catalogue acts as a source of public sector information, making it available to developers and researchers.
The catalogue was launched back in 2009 with the intention of making agency data sets available in more accessible formats.
The Chief Information Office highlighted the catalogue's uses in a recent competition called "apps4nsw". Entrants had to use information available through the catalogue to build an app. After a lengthy delay in the judging process, winners shared $50,000 in prizes.