diff --git a/app/tasks/maintenance/fix_missing_champs_task.rb b/app/tasks/maintenance/fix_missing_champs_task.rb
deleted file mode 100644
index c7c92eb1ac5..00000000000
--- a/app/tasks/maintenance/fix_missing_champs_task.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-# bundle exec maintenance_tasks perform Maintenance::FixMissingChampsTask --arguments procedure_ids:id1,id2,id3
-module Maintenance
-  class FixMissingChampsTask < MaintenanceTasks::Task
-    attribute :procedure_ids, array: true, default: []
-
-    def collection
-      Dossier.joins(:procedure).where(procedure: { id: procedure_ids }).in_batches
-    end
-
-    def process(dossiers)
-      # rubocop:disable Rails/FindEach
-      DossierPreloader.new(dossiers).all.each do |dossier|
-        # rubocop:enable Rails/FindEach
-        maybe_fixable = [dossier, dossier.editing_forks.first].compact.any? { _1.champs.size < _1.revision.types_de_champ.size }
-        if maybe_fixable
-          DataFixer::DossierChampsMissing.new(dossier:).fix
-        end
-      end
-    end
-  end
-end
diff --git a/lib/tasks/data_fixer.rake b/lib/tasks/data_fixer.rake
index f4419bc8c0d..46f3dd8212c 100644
--- a/lib/tasks/data_fixer.rake
+++ b/lib/tasks/data_fixer.rake
@@ -28,19 +28,4 @@ namespace :data_fixer do
       end
     end
   end
-
-  desc <<~EOD
-    Given a dossier_id in argument, run the DossierChampsMissing.
-    ex: rails data_fixer:dossier_missing_champ\[1\]
-  EOD
-  task :dossier_missing_champ, [:dossier_id] => :environment do |_t, args|
-    dossier = Dossier.find(args[:dossier_id])
-    result = DataFixer::DossierChampsMissing.new(dossier:).fix
-
-    if result > 0
-      rake_puts "Dossier#[#{args[:dossier_id]}] fixed"
-    else
-      rake_puts "Dossier#[#{args[:dossier_id]}] not fixed"
-    end
-  end
 end