diff --git a/_config.yml b/_config.yml
index d553517..a78f124 100644
--- a/_config.yml
+++ b/_config.yml
@@ -90,8 +90,9 @@ index_old_doc_paths: false
 # drop-down list in the distro selector.
 #
 ros2_distros:
-  - 'humble'
   - 'foxy'
+  - 'humble'
+  - 'iron'
   - 'rolling'
 
 ros_distros:
diff --git a/index.html b/index.html
index 5f05b83..81d1ceb 100644
--- a/index.html
+++ b/index.html
@@ -71,10 +71,10 @@ <h2>Active Distributions</h2>
       <a href="https://docs.ros.org/en/foxy/Releases/Release-Foxy-Fitzroy.html">ROS 2 Foxy</a>
     </p>
     <p>
-      <a href="https://docs.ros.org/en/galactic/Releases/Release-Galactic-Geochelone.html">ROS 2 Galactic</a>
+      <a href="https://docs.ros.org/en/humble/Releases/Release-Humble-Hawksbill.html">ROS 2 Humble</a>
     </p>
     <p>
-      <a href="https://docs.ros.org/en/humble/Releases/Release-Humble-Hawksbill.html">ROS 2 Humble</a>
+      <a href="https://docs.ros.org/en/iron/Releases/Release-Iron-Irwini.html">ROS 2 Iron</a>
     </p>
     <h2>Development Distribution</h2>
     <p>