diff --git a/scripts/launchpad/add_series.py b/scripts/launchpad/add_series.py
index 070ed9e..81c8a82 100644
--- a/scripts/launchpad/add_series.py
+++ b/scripts/launchpad/add_series.py
@@ -29,9 +29,12 @@ xenial = ubuntu.getSeries(name_or_version='xenial')
yakkety = ubuntu.getSeries(name_or_version='yakkety')
snapcraft = client.projects['snapcraft']
-milestone = snapcraft.getMilestone(name='2.12')
-tasks = snapcraft.searchTasks(milestone=milestone)
+snapcraft_milestone = snapcraft.getMilestone(name='2.12')
+xenial_updates_milestone = ubuntu.getMilestone(name='xenial-updates')
+tasks = snapcraft.searchTasks(milestone=snapcraft_milestone)
for task in tasks:
- task.bug.addTask(target=xenial)
+ xenial_task = task.bug.addTask(target=xenial)
+ xenial_task.milestone = xenial_updates_milestone
+ xenial_task.lp_save()
task.bug.addTask(target=yakkety)