diff --git a/software/ompi/v4.1/timeline-graph.php b/software/ompi/v4.1/timeline-graph.php
index 40e31e850..b82a9cae2 100644
--- a/software/ompi/v4.1/timeline-graph.php
+++ b/software/ompi/v4.1/timeline-graph.php
@@ -53,6 +53,7 @@
 milestone("v4.1.6", "2023-09-30", $data, $vpos);
 #milestone("v4.1.7rc1", "2024-10-22", $data, $vpos);
 milestone("v4.1.7", "2024-10-31", $data, $vpos);
+milestone("v4.1.8rc1", 2025-01-24", $data, $vpos);
 
 // Party on
 $graph->CreateSimple($data);
diff --git a/software/ompi/v4.1/version.inc b/software/ompi/v4.1/version.inc
index 80a9f7a23..72dd97032 100644
--- a/software/ompi/v4.1/version.inc
+++ b/software/ompi/v4.1/version.inc
@@ -15,7 +15,7 @@ $releases = array("4.1.7", "4.1.6", "4.1.5", "4.1.4", "4.1.3", "4.1.2", "4.1.1",
 /* prereleases must be ordered newest to oldest.  All prereleases
    will be shown, so make an empty array when the official release
    is added to releases above */
-$prereleases = array();
+$prereleases = array("4.1.8rc1");
 
 /* set to true if we should add a cygwin note */
 $cygwin_note = 0;