diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000..6d3c8e191
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,14 @@
+# Dependabot's documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "bundler"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"
+
+#  - package-ecosystem: "npm" # See documentation for possible values
+#    directory: "/" # Location of package manifests
+#    schedule:
+#      interval: "daily"
diff --git a/Gemfile.lock b/Gemfile.lock
index dd871a642..115805861 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -274,7 +274,7 @@ GEM
       multi_json
       request_store (>= 1.0)
     graphql (1.10.9)
-    graphql-batch (0.4.2)
+    graphql-batch (0.4.3)
       graphql (>= 1.3, < 2)
       promise.rb (~> 0.7.2)
     graphql-rails_logger (1.2.2)
diff --git a/app/controllers/new_administrateur/procedure_administrateurs_controller.rb b/app/controllers/new_administrateur/procedure_administrateurs_controller.rb
index a35b980a6..08e949e2d 100644
--- a/app/controllers/new_administrateur/procedure_administrateurs_controller.rb
+++ b/app/controllers/new_administrateur/procedure_administrateurs_controller.rb
@@ -11,7 +11,7 @@ module NewAdministrateur
       # Find the admin
       administrateur = Administrateur.by_email(email)
       if administrateur.nil?
-        flash.alert = "L’administrateur « #{email} » n’existe pas. Invitez-le à demander un compte administrateur à l’addresse <a href=#{new_demande_url}>#{new_demande_url}</a>."
+        flash.alert = "L’administrateur « #{email} » n’existe pas. Invitez-le à demander un compte administrateur à l’addresse <a href=#{DEMANDE_INSCRIPTION_ADMIN_PAGE_URL}>#{DEMANDE_INSCRIPTION_ADMIN_PAGE_URL}</a>."
         return
       end
 
diff --git a/app/models/champs/repetition_champ.rb b/app/models/champs/repetition_champ.rb
index d95c917ff..3d53a48ad 100644
--- a/app/models/champs/repetition_champ.rb
+++ b/app/models/champs/repetition_champ.rb
@@ -53,7 +53,7 @@ class Champs::RepetitionChamp < Champ
   def libelle_for_export
     str = "(#{stable_id}) #{libelle}"
     # /\*?[] are invalid Excel worksheet characters
-    ActiveStorage::Filename.new(str.delete('[]*?')).sanitized.truncate(30)
+    ActiveStorage::Filename.new(str.delete('[]*?')).sanitized
   end
 
   class Row < Hashie::Dash
diff --git a/app/models/export.rb b/app/models/export.rb
index 39f9e107b..508c63792 100644
--- a/app/models/export.rb
+++ b/app/models/export.rb
@@ -24,7 +24,7 @@ class Export < ApplicationRecord
 
   scope :stale, -> { where('updated_at < ?', (Time.zone.now - MAX_DUREE_CONSERVATION_EXPORT)) }
 
-  after_create :compute_async
+  after_save_commit :compute_async
 
   def compute_async
     ExportJob.perform_later(self)
diff --git a/app/services/procedure_export_service.rb b/app/services/procedure_export_service.rb
index 4e7a79778..66a325a66 100644
--- a/app/services/procedure_export_service.rb
+++ b/app/services/procedure_export_service.rb
@@ -62,7 +62,7 @@ class ProcedureExportService
   }
 
   def options_for(table, format)
-    case table
+    options = case table
     when :dossiers
       { instances: dossiers.to_a, sheet_name: 'Dossiers', spreadsheet_columns: :"spreadsheet_columns_#{format}" }
     when :etablissements
@@ -72,5 +72,8 @@ class ProcedureExportService
     when Array
       { instances: table.last, sheet_name: table.first }
     end.merge(DEFAULT_STYLES)
+
+    options[:sheet_name] = options[:sheet_name].truncate(30)
+    options
   end
 end
diff --git a/config/routes.rb b/config/routes.rb
index 23b83dae0..fc8eec97d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -423,6 +423,7 @@ Rails.application.routes.draw do
   #
   # Legacy routes
   #
+  get 'demandes/new' => redirect(DEMANDE_INSCRIPTION_ADMIN_PAGE_URL)
 
   get 'backoffice' => redirect('/procedures')
   get 'backoffice/sign_in' => redirect('/users/sign_in')
diff --git a/spec/services/procedure_export_service_spec.rb b/spec/services/procedure_export_service_spec.rb
index 34f140986..741f9bdd1 100644
--- a/spec/services/procedure_export_service_spec.rb
+++ b/spec/services/procedure_export_service_spec.rb
@@ -356,6 +356,21 @@ describe ProcedureExportService do
         end
       end
 
+      context 'with long libelle' do
+        before do
+          procedure.types_de_champ.each do |c|
+            c.update!(libelle: "#{c.id} - Quam rem nam maiores numquam dolorem nesciunt. Cum et possimus et aut. Fugit voluptas qui qui.")
+          end
+          champ_repetition.champs.each do |c|
+            c.type_de_champ.update!(libelle: "#{c.id} - Quam rem nam maiores numquam dolorem nesciunt. Cum et possimus et aut. Fugit voluptas qui qui.")
+          end
+        end
+
+        it 'should have valid sheet name' do
+          expect { subject }.not_to raise_error(ArgumentError)
+        end
+      end
+
       context 'with non unique labels' do
         let(:dossier) { create(:dossier, :en_instruction, :with_all_champs, :with_individual, procedure: procedure) }
         let(:champ_repetition) { dossier.champs.find { |champ| champ.type_champ == 'repetition' } }