diff --git a/db/migrate/20250404072651_add_last_active_at_to_bubbles.rb b/db/migrate/20250404072651_add_last_active_at_to_bubbles.rb
index 56db5d162..c1e9e4723 100644
--- a/db/migrate/20250404072651_add_last_active_at_to_bubbles.rb
+++ b/db/migrate/20250404072651_add_last_active_at_to_bubbles.rb
@@ -4,4 +4,3 @@ class AddLastActiveAtToBubbles < ActiveRecord::Migration[8.1]
     add_index :bubbles, %i[ last_active_at status ]
   end
 end
-
diff --git a/script/fill_last_active_at.rb b/script/fill_last_active_at.rb
new file mode 100755
index 000000000..cfad6315a
--- /dev/null
+++ b/script/fill_last_active_at.rb
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+
+require_relative "../config/environment"
+
+ApplicationRecord.with_each_tenant do |tenant|
+  Bubble.find_each do |bubble|
+    bubble.update! last_active_at: bubble.events.last&.created_at || Time.current
+  end
+end