diff --git a/roles/bootstrap/tasks/ubuntu.yml b/roles/bootstrap/tasks/ubuntu.yml
index 0395da2..f0316c2 100644
--- a/roles/bootstrap/tasks/ubuntu.yml
+++ b/roles/bootstrap/tasks/ubuntu.yml
@@ -1,8 +1,11 @@
 ---
 - name: Bootstrap Ubuntu System
   vars:
-    bootstrap_ubuntu_release: >-
-      {{ 'plucky' if os == 'ubuntu' else 'noble' }}
+    # ubuntu = latest non-LTS, ubuntu-lts = latest LTS
+    bootstrap_ubuntu_release_map:
+      ubuntu: plucky
+      ubuntu-lts: noble
+    bootstrap_ubuntu_release: "{{ bootstrap_ubuntu_release_map[os] | default('noble') }}"
     bootstrap_ubuntu_package_config: >-
       {{
         lookup('vars', bootstrap_var_key)