diff --git a/README.md b/README.md
index 69ccae91..87f3c522 100644
--- a/README.md
+++ b/README.md
@@ -623,6 +623,7 @@ Software for submission of [abstracts](https://en.wikipedia.org/wiki/Abstract_ma
 - [frab](https://frab.github.io/frab/) - Web-based conference planning and management system. It helps to collect submissions, to manage talks and speakers and to create a schedule. ([Source Code](https://github.com/frab/frab)) `MIT` `Ruby/Docker`
 - [indico](https://getindico.io/) - A feature-rich event management system, made @ CERN, the place where the Web was born. ([Demo](https://sandbox.getindico.io/), [Source Code](https://github.com/indico/indico)) `MIT` `Python`
 - [OpenSlides](https://openslides.com/) - A web based presentation and assembly system for managing and projecting agenda, motions and elections of an assembly. ([Demo](https://demo.os4.openslides.com/login), [Source Code](https://github.com/OpenSlides/OpenSlides)) `MIT` `Docker`
+- [OpenSlides](https://openslides.com/) - A web based presentation and assembly system for managing and projecting agenda, motions and elections of an assembly. ([Demo](https://demo.os4.openslides.com/login), [Source Code](https://github.com/OpenSlides/OpenSlides)) `MIT` `Docker`
 - [osem](https://osem.io/) - Event management tailored to free Software conferences. ([Source Code](https://github.com/openSUSE/osem)) `MIT` `Ruby/Docker`
 - [pretalx](https://pretalx.org) - Web-based event management, including running a Call for Papers, reviewing submissions, and scheduling talks. Exports and imports for various related tools. ([Source Code](https://github.com/pretalx/pretalx)) `Apache-2.0` `Python`
 
@@ -971,6 +972,7 @@ _Related: [Groupware](#groupware)_
 - [Surfer](https://git.cloudron.io/cloudron/surfer) - Simple static file server with webui to manage files. `MIT` `Nodejs`
 - [TagSpaces](https://www.tagspaces.org/) - TagSpaces is an offline, cross-platform file manager and organiser that also can function as a note taking app. The WebDAV version of the application can be installed on top of a WebDAV servers such as Nextcloud or ownCloud. ([Demo](https://demo.tagspaces.com), [Source Code](https://github.com/tagspaces/tagspaces)) `AGPL-3.0` `Nodejs`
 - [Tiny File Manager](https://tinyfilemanager.github.io) - Web based File Manager in PHP, simple, fast and small file manager with a single file. ([Demo](https://tinyfilemanager.github.io/demo/), [Source Code](https://github.com/prasathmani/tinyfilemanager)) `GPL-3.0` `PHP`
+- [Tiny File Manager](https://tinyfilemanager.github.io) - Web based File Manager in PHP, simple, fast and small file manager with a single file. ([Demo](https://tinyfilemanager.github.io/demo/), [Source Code](https://github.com/prasathmani/tinyfilemanager)) `GPL-3.0` `PHP`
 
 
 ### Games