diff --git a/lib/tasks/routing_engine.rake b/lib/tasks/routing_engine.rake
new file mode 100644
index 00000000000..f62f2880538
--- /dev/null
+++ b/lib/tasks/routing_engine.rake
@@ -0,0 +1,23 @@
+require Rails.root.join("lib", "tasks", "task_helper")
+
+namespace :routing_engine do
+  desc <<~EOD
+    Given an id in argument, run the RoutingEngine for a dossier, after having set `forced_groupe_instructeur` field to false.
+    ex: rails routing_engine:run\[1352684\]
+  EOD
+  task :run, [:dossier_id] => :environment do |_t, args|
+    dossier = Dossier.find_by(id: args[:dossier_id])
+
+    if dossier.present?
+      dossier.update!(forced_groupe_instructeur: false)
+
+      dossier.reload
+
+      RoutingEngine.compute(dossier)
+
+      rake_puts "Dossier #{args[:dossier_id]} routed to groupe instructeur #{dossier.groupe_instructeur.label}"
+    else
+      rake_puts "Dossier with id #{args[:dossier_id]} not found in db"
+    end
+  end
+end