Matthew Howell focused on security remediation for the ministryofjustice/laa-court-data-ui repository, addressing critical vulnerabilities through targeted dependency management. He upgraded key frontend dependencies, including @rails/ujs, govuk-frontend, and @ministryofjustice/frontend, confining all changes to the package-lock.json file to minimize production risk. Using JavaScript and YAML, Matthew ensured that the application’s security posture improved without altering any application code, thereby maintaining stability. His approach emphasized careful version control and integrity verification, validated by successful CI and build processes. Over the month, he demonstrated depth in security patching and dependency management, delivering a safer, up-to-date frontend stack with minimal operational disruption.