diff --git a/app/domains/achievements/countdown_riddle_mass_unlocker.rb b/app/domains/achievements/countdown_riddle_mass_unlocker.rb
index 94e5bd17..cc20ee2e 100644
--- a/app/domains/achievements/countdown_riddle_mass_unlocker.rb
+++ b/app/domains/achievements/countdown_riddle_mass_unlocker.rb
@@ -3,7 +3,8 @@
 module Achievements
   class CountdownRiddleMassUnlocker < MassUnlocker
     def call
-      eligible_users = User.where(uid: %w[171 5134 7665 11200 13740 14764])
+      uids = File.readlines("db/static/achievement_countdown_riddle_uids.txt").map(&:strip)
+      eligible_users = User.where(uid: uids)
 
       unlock_for!(eligible_users)
     end
diff --git a/db/static/achievement_countdown_riddle_uids.txt b/db/static/achievement_countdown_riddle_uids.txt
new file mode 100644
index 00000000..e69de29b