diff --git a/README.md b/README.md
index abb3ed14..49c76427 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 rtabmap_ros [![Build Status](https://github.com/introlab/rtabmap_ros/actions/workflows/ros2.yml/badge.svg)](https://github.com/introlab/rtabmap_ros/actions/workflows/ros2.yml)
 ===========
 
-RTAB-Map's ROS2 package (branch `ros2`). **UNDER CONSTRUCTION**: currently most nodes are ported to ROS2, however they are not all tested yet. The interface is the same than on ROS1 (parameters and topic names should still match ROS1 documentation on [rtabmap_ros](http://wiki.ros.org/rtabmap_ros)). 
+RTAB-Map's ROS2 package (branch `ros2`). **UNDER CONSTRUCTION / ROS2 Foxy minimum required**: currently most nodes are ported to ROS2, however they are not all tested yet. The interface is the same than on ROS1 (parameters and topic names should still match ROS1 documentation on [rtabmap_ros](http://wiki.ros.org/rtabmap_ros)). 
 
 `rtabmap.launch` is also ported to ROS2 with same arguments. If you see [ROS1 examples](http://wiki.ros.org/rtabmap_ros/Tutorials/HandHeldMapping) like this: