The CESSDA European Language Social Science Thesaurus (ELSST) is a broad-based, multilingual thesaurus with extensive coverage of the social sciences. During 2020/21, the thesaurus moved to new internal thesaurus management and external browser platforms (VocBench and Skosmos). This presentation will cover how international CESSDA Service Provider partners collaborated to both manage the challenges of moving to the new systems and embrace the new and improved opportunities the move has brought, including linked open data, mapping with other high-profile thesauri, increasing the FAIRness of metadata, and increased international visibility for ELSST.