diff --git a/scripts/upgrade b/scripts/upgrade
index cfe1fb7..3e5e9e3 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -19,14 +19,21 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(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=$app --key=final_path)
-datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
 db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 port=$(ynh_app_setting_get --app=$app --key=port)
 redis_db=$(ynh_app_setting_get --app=$app --key=redis_db)
 key=$(ynh_app_setting_get --app=$app --key=key)
 
+#=================================================
+# CHECK VERSION
+#=================================================
+ynh_script_progression --message="Checking version..."
+
+upgrade_type=$(ynh_check_app_version_changed)
+
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================