diff --git a/app/jobs/migrations/backfill_stable_id_job.rb b/app/jobs/migrations/backfill_stable_id_job.rb
new file mode 100644
index 000000000..2ccfaeaba
--- /dev/null
+++ b/app/jobs/migrations/backfill_stable_id_job.rb
@@ -0,0 +1,13 @@
+class Migrations::BackfillStableIdJob < ApplicationJob
+  queue_as :low_priority
+
+  def perform(dossier_id)
+    sql = "UPDATE champs SET stable_id = t.stable_id, stream = 'main'
+      FROM types_de_champ t
+        WHERE champs.type_de_champ_id = t.id
+        AND champs.dossier_id = ?
+        AND champs.stable_id IS NULL;"
+    query = ActiveRecord::Base.sanitize_sql_array([sql, dossier_id])
+    ActiveRecord::Base.connection.execute(query)
+  end
+end
diff --git a/app/tasks/maintenance/backfill_champs_stable_id_task.rb b/app/tasks/maintenance/backfill_champs_stable_id_task.rb
new file mode 100644
index 000000000..db0ab2eff
--- /dev/null
+++ b/app/tasks/maintenance/backfill_champs_stable_id_task.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class BackfillChampsStableIdTask < MaintenanceTasks::Task
+    def collection
+      Dossier.select(:id)
+    end
+
+    def process(dossier)
+      if Champ.exists?(dossier_id: dossier.id, stable_id: nil)
+        day = 24 * 60 * 60 # 24 hours in seconds
+        wait = rand(0...(day * 4)).seconds # every second over 4 days
+
+        Migrations::BackfillStableIdJob
+          .set(wait:)
+          .perform_later(dossier.id)
+      end
+    end
+  end
+end
diff --git a/app/tasks/maintenance/fill_champs_stable_id_task.rb b/app/tasks/maintenance/fill_champs_stable_id_task.rb
deleted file mode 100644
index bf6c6c9f6..000000000
--- a/app/tasks/maintenance/fill_champs_stable_id_task.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-module Maintenance
-  class FillChampsStableIdTask < MaintenanceTasks::Task
-    BATCH = 20
-
-    def collection
-      (Dossier.last.id / BATCH).ceil.times.to_a
-    end
-
-    def process(batch_number)
-      dossier_id_start = batch_number * BATCH
-      dossier_id_end = dossier_id_start + BATCH
-      Champ
-        .where(dossier_id: dossier_id_start..dossier_id_end, stable_id: nil)
-        .joins(:type_de_champ)
-        .select('champs.id, types_de_champ.stable_id as type_de_champ_stable_id')
-        .find_each do |champ|
-          champ.update_columns(stable_id: champ.type_de_champ_stable_id, stream: 'main')
-        end
-    end
-  end
-end
diff --git a/config/initializers/transition_to_sidekiq.rb b/config/initializers/transition_to_sidekiq.rb
index 7f319a64c..8c12e200e 100644
--- a/config/initializers/transition_to_sidekiq.rb
+++ b/config/initializers/transition_to_sidekiq.rb
@@ -49,5 +49,9 @@ if Rails.env.production? && sidekiq_enabled
     class DossierUpdateSearchTermsJob < ApplicationJob
       self.queue_adapter = :sidekiq
     end
+
+    class Migrations::BackfillStableIdJob
+      self.queue_adapter = :sidekiq
+    end
   end
 end