diff --git a/scripts/upgrade b/scripts/upgrade
index 45ad50e..26a440f 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -15,29 +15,6 @@ source /usr/share/yunohost/helpers
 
 upgrade_type=$(ynh_check_app_version_changed)
 
-#=================================================
-# ENSURE DOWNWARD COMPATIBILITY
-#=================================================
-ynh_script_progression --message="Ensuring downward compatibility..."
-
-# If fpm_footprint doesn't exist, create it
-if [ -z "${fpm_footprint:-}" ]; then
-	fpm_footprint=low
-	ynh_app_setting_set --app=$app --key=fpm_footprint --value=$fpm_footprint
-fi
-
-# If fpm_free_footprint doesn't exist, create it
-if [ -z "${fpm_free_footprint:-}" ]; then
-	fpm_free_footprint=0
-	ynh_app_setting_set --app=$app --key=fpm_free_footprint --value=$fpm_free_footprint
-fi
-
-# If fpm_usage doesn't exist, create it
-if [ -z "${fpm_usage:-}" ]; then
-	fpm_usage=low
-	ynh_app_setting_set --app=$app --key=fpm_usage --value=$fpm_usage
-fi
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -59,7 +36,7 @@ chown -R $app:www-data "$install_dir"
 ynh_script_progression --message="Upgrading PHP-FPM configuration..."
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$phpversion
+ynh_add_fpm_config --phpversion=$phpversion
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config