diff --git a/lib/tasks/deployment/20220506105510_fix_wrong_parent.rake b/lib/tasks/deployment/20220506105510_fix_wrong_parent.rake
new file mode 100644
index 000000000..e2e9893ad
--- /dev/null
+++ b/lib/tasks/deployment/20220506105510_fix_wrong_parent.rake
@@ -0,0 +1,32 @@
+namespace :after_party do
+  desc 'Deployment task: fix_wrong_parent'
+  task fix_wrong_parent: :environment do
+    children = ProcedureRevisionTypeDeChamp.where.not(parent_id: nil).includes(:parent)
+
+    rake_puts "#{children.count} children to check"
+
+    progress = ProgressReport.new(children.count)
+
+    misconfigured = children.filter do |child|
+      progress.inc
+      child.revision_id != child.parent.revision_id
+    end
+    progress.finish
+
+    rake_puts "#{misconfigured.count} children to fix"
+
+    progress = ProgressReport.new(misconfigured.count)
+
+    misconfigured.each do |child|
+      new_parent = ProcedureRevisionTypeDeChamp.find_by(revision: child.revision, type_de_champ_id: child.parent.type_de_champ_id)
+      child.update(parent_id: new_parent.id)
+      progress.inc
+    end
+    progress.finish
+
+    # Update task as completed.  If you remove the line below, the task will
+    # run with every deploy (or every time you call after_party:run).
+    AfterParty::TaskRecord
+      .create version: AfterParty::TaskRecorder.new(__FILE__).timestamp
+  end
+end