diff --git a/lib/tasks/deployment/20210118084107_add_default_skip_content_type_validation_to_piece_justificative.rake b/lib/tasks/deployment/20210118084107_add_default_skip_content_type_validation_to_piece_justificative.rake
new file mode 100644
index 000000000..3cf0df028
--- /dev/null
+++ b/lib/tasks/deployment/20210118084107_add_default_skip_content_type_validation_to_piece_justificative.rake
@@ -0,0 +1,18 @@
+namespace :after_party do
+  desc 'Deployment task: add_default_skip_content_type_validation_to_piece_justificative'
+  task add_default_skip_content_type_validation_to_piece_justificative: :environment do
+    puts "Running deploy task 'add_default_skip_content_type_validation_to_piece_justificative'"
+    tdcs = TypeDeChamp.where(type_champ: TypeDeChamp.type_champs.fetch(:piece_justificative))
+    progress = ProgressReport.new(tdcs.count)
+    tdcs.find_each do |tdc|
+      tdc.update(skip_content_type_pj_validation: true)
+      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