diff --git a/mailman.yaml b/mailman.yaml
index 4fd059f..4419e25 100644
--- a/mailman.yaml
+++ b/mailman.yaml
@@ -34,6 +34,6 @@ data:
     rpms:
       mailman:
         rationale: Module API.
-        ref: stream-2.1-rhel-8.8.0
+        ref: stream-mailman-2.1-rhel-8.9.0
         buildorder: 1
 ...