diff --git a/README.md b/README.md
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@@ -1962,7 +1962,6 @@ _Related: [Task Management & To-do Lists](#task-management--to-do-lists), [Softw
 - [Iguana](https://github.com/iguana-project/iguana) - Iguana is an open source issue management system with a kanban board. `CC-BY-SA-4.0` `Python/Docker`
 - [ITFlow](https://itflow.org) - Client IT Documentation, Ticketing, Invoicing and Accounting Web Application for MSPs (Managed Service Providers). ([Demo](https://demo.itflow.org), [Source Code](https://github.com/itflow-org/itflow)) `GPL-3.0` `PHP`
 - [MantisBT](https://www.mantisbt.org/) - Self hosted bug tracker, fits best for software development. ([Demo](https://www.mantisbt.org/bugs/my_view_page.php), [Source Code](https://github.com/mantisbt/mantisbt)) `GPL-2.0` `PHP`
-- [osTicket](https://osticket.com/) - Manage, organize and archive all your support requests and responses in one place. ([Source Code](https://github.com/osTicket/osTicket)) `GPL-2.0` `PHP`
 - [OTOBO](https://otobo.io/en/) - Flexible web-based ticketing system used for Customer Service, Help Desk, IT Service Management. ([Demo](https://otobo.io/en/service-management-plattform/otobo-demo/), [Source Code](https://github.com/RotherOSS/otobo)) `GPL-3.0` `Perl/Docker`
 - [Request Tracker](https://www.bestpractical.com/rt/) - An enterprise-grade issue tracking system. ([Source Code](https://github.com/bestpractical/rt)) `GPL-2.0` `Perl`
 - [Roundup Issue Tracker](https://www.roundup-tracker.org/) - A simple-to-use and -install issue-tracking system with command-line, web, REST, XML-RPC, and e-mail interfaces. Designed with flexibility in mind - not just another bug tracker. ([Source Code](https://www.roundup-tracker.org/code.html)) `MIT/ZPL-2.0` `Python/Docker`