[QGIS-Developer] QGIS plugin - update rejected

[Benjamin Chartier - Pro]

Hello,

I attempted to update a plugin 
(https://plugins.qgis.org/plugins/datagrandest/ - for which I am one of 
the maintainers) on the official OSGeo plugin repo using the online form 
(https://plugins.qgis.org/plugins/add/).
This was unsuccessful.
I only got the following short message:

     You cannot modify this plugin.

I suppose this is due to the fact I am not the original uploader of this 
plugin.
arichard is the one who first uploaded the plugin.

Is there a way to allow more than one person to upload updates for a 
plugin?

Thank you for your help.

-- 
Benjamin