diff --git a/README.md b/README.md
index 7f46ccc..d6ac03d 100644
--- a/README.md
+++ b/README.md
@@ -22,13 +22,6 @@ You can either :
 * Install from the Yunohost Admin web interface, from the Community Apps list;
 * Install from the command-line: `sudo yunohost app install https://github.com/YunoHost-Apps/mattermost_ynh`.
 
-## Upgrading
-
-Mattermost upgrades tend to work only from one minor version to the other (3.0 to 3.1, 3.1 to 3.2, etc).
-
-**Important**: to upgrade from Mattermost 2.2, you will need an extra manual step.
-Run the upgrade from Yunohost, then follow [this guide](https://docs.mattermost.com/administration/upgrade.html).
-
 ## What works
 
 * Installation on domain's root