diff --git a/opensciencegrid/mailchimp-sync/Dockerfile b/opensciencegrid/mailchimp-sync/Dockerfile
index 9ac09e44..737804cb 100644
--- a/opensciencegrid/mailchimp-sync/Dockerfile
+++ b/opensciencegrid/mailchimp-sync/Dockerfile
@@ -1,4 +1,4 @@
-FROM almalinux:8
+FROM almalinux:9
 
 LABEL maintainer OSG Software <help@osg-htc.org>
 
diff --git a/opensciencegrid/mailchimp-sync/mailchimp-sync/sync.py b/opensciencegrid/mailchimp-sync/mailchimp-sync/sync.py
index 008949e9..039347dd 100755
--- a/opensciencegrid/mailchimp-sync/mailchimp-sync/sync.py
+++ b/opensciencegrid/mailchimp-sync/mailchimp-sync/sync.py
@@ -279,6 +279,7 @@ def main():
     connect_apply_tag(users, 'CMS',         'root.cms')
     connect_apply_tag(users, 'Duke',        'root.duke')
     connect_apply_tag(users, 'OSG-Connect', 'root.osg')
+    connect_apply_tag(users, 'Collab',      'root.collab')
     connect_apply_tag(users, 'SPT',         'root.spt')
     connect_apply_tag(users, 'UChicago',    'root.uchicago')
     connect_apply_tag(users, 'XENONnT',     'root.xenon1t')