diff --git a/scripts/upgrade b/scripts/upgrade
index b7c38b3..5c9f248 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -20,6 +20,8 @@ domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
+admin=$(ynh_app_setting_get --app=$app --key=admin)
+password=$(ynh_app_setting_get --app=$app --key=password)
 
 #=================================================
 # CHECK VERSION
@@ -111,6 +113,11 @@ ynh_install_nodejs --nodejs_version=$nodejs_version
 #=================================================
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
 
+ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/systemd.service"
+ynh_replace_string --match_string="__YNH_NODE__" --replace_string="$ynh_node" --target_file="../conf/systemd.service"
+ynh_replace_string --match_string="__PASSWORD__" --replace_string="$password" --target_file="../conf/systemd.service"
+ynh_replace_string --match_string="__ADMIN__" --replace_string="$admin" --target_file="../conf/systemd.service"
+
 ynh_add_systemd_config
 
 #=================================================