diff --git a/scripts/upgrade b/scripts/upgrade
index 71ba3d1..8314959 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -136,7 +136,7 @@ ynh_add_config --template="../conf/production.json" --destination="$install_dir/
 ynh_add_config --template="../conf/production.json" --destination="$install_dir/live/services/history-v1/config/production.json"
 cp "$install_dir/build/server-ce/config/custom-environment-variables.json" "$install_dir/live/services/history-v1/config/"
 
-ynh_script_progression --message="Building app..."
+ynh_script_progression --message="Building app... This may take a LOT of time depending of your CPU" --weight=25
 pushd "$install_dir/live"
 	ynh_use_nodejs
    	ynh_exec_warn_less npm ci