diff --git a/scripts/upgrade b/scripts/upgrade
index 5d36767..6dff00a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -18,10 +18,9 @@ app=$YNH_APP_INSTANCE_NAME
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
-admin=$(ynh_app_setting_get --app=$app --key=admin)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
-language=$(ynh_app_setting_get --app=$app --key=language)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # CHECK VERSION
@@ -43,22 +42,10 @@ ynh_clean_setup () {
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
-#=================================================
-# STANDARD UPGRADE STEPS
-#=================================================
-# STOP SYSTEMD SERVICE
-#=================================================
-ynh_script_progression --message="Stopping a systemd service..." --time --weight=1
-
-ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
-
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
-ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1
-
-### If nobody installed your app before 4.1,
-### then you may safely remove these lines
+ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
 # Cleaning legacy permissions
 if ynh_legacy_permissions_exists; then
@@ -67,20 +54,10 @@ if ynh_legacy_permissions_exists; then
   ynh_app_setting_delete --app=$app --key=is_public
 fi
 
-if ! ynh_permission_exists --permission="admin"; then
-  # Create the required permissions
-  ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
-fi
-
-# Create a permission if needed
-if ! ynh_permission_exists --permission="api"; then
-  ynh_permission_create --permission="api" --url="/api" --allowed="visitors" --show_tile="false" --protected="true"
-fi
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
-ynh_script_progression --message="Making sure dedicated system user exists..." --time --weight=1
+ynh_script_progression --message="Making sure dedicated system user exists..." --weight=2
 
 # Create a dedicated user (if not existing)
 ynh_system_user_create --username=$app --home_dir="$final_path"
@@ -91,7 +68,7 @@ ynh_system_user_create --username=$app --home_dir="$final_path"
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-  ynh_script_progression --message="Upgrading source files..." --time --weight=1
+  ynh_script_progression --message="Upgrading source files..." --weight=5
 
   # Download, check integrity, uncompress and patch the source from app.src
   ynh_setup_source --dest_dir="$final_path"
@@ -104,7 +81,7 @@ chown -R $app:www-data "$final_path"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading NGINX web server configuration..." --time --weight=1
+ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
@@ -112,7 +89,7 @@ ynh_add_nginx_config
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
-ynh_script_progression --message="Upgrading PHP-FPM configuration..." --time --weight=1
+ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=1
 
 # Create a dedicated PHP-FPM config
 ynh_add_fpm_config --package="$extra_php_dependencies"