diff --git a/doc/install-guide/source/environment-packages-ubuntu.rst b/doc/install-guide/source/environment-packages-ubuntu.rst
index 34be02e5ec..c264185d5c 100644
--- a/doc/install-guide/source/environment-packages-ubuntu.rst
+++ b/doc/install-guide/source/environment-packages-ubuntu.rst
@@ -14,6 +14,12 @@ Archive.
 
 Archive Enablement
 ------------------
+**OpenStack 2023.1 Antelope for Ubuntu 22.04 LTS:**
+
+.. code-block:: console
+
+   # add-apt-repository cloud-archive:antelope
+
 **OpenStack Zed for Ubuntu 22.04 LTS:**
 
 .. code-block:: console