diff --git a/README.md b/README.md
index a03b96d..c72b5d4 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,8 @@
 [![Install Collabora online with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=collabora_online)
 
 **Upgrade this package:**  
-`sudo yunohost app upgrade --verbose example -u https://github.com/YunoHost-Apps/collaboraonline_ynh`
+You can use your Yunohost admin interface, or the command line: `sudo yunohost app upgrade --verbose collabora -u https://github.com/YunoHost-Apps/collaboraonline_ynh`
+
+To upgrade to a testing branch (warning: *only* if you know what you are doing): `sudo yunohost app upgrade --verbose collabora -u https://github.com/YunoHost-Apps/collaboraonline_ynh/tree/testing`