diff --git a/frontend/asset_mapper.rst b/frontend/asset_mapper.rst
index 28c213c8f61..bf8459d2a96 100644
--- a/frontend/asset_mapper.rst
+++ b/frontend/asset_mapper.rst
@@ -248,6 +248,20 @@ computers if some files are missing.
     such as ``@popperjs/core``. The ``download`` option will download both the main
     package *and* its dependencies.
 
+You can check for available updates for your third-party packages by running :
+
+.. code-block:: terminal
+
+    # check for updates for all packages
+    $ php bin/console importmap:outdated
+
+    # check for updates for the given list of packages
+    $ php bin/console importmap:outdated bootstrap lodash
+
+.. versionadded:: 6.4
+
+    The ``importmap:outdated`` command was introduced in Symfony 6.4.
+
 To update third-party packages in your ``importmap.php`` file, run:
 
 .. code-block:: terminal