diff --git a/app/models/export.rb b/app/models/export.rb
index f97673248..78e595546 100644
--- a/app/models/export.rb
+++ b/app/models/export.rb
@@ -2,14 +2,15 @@
 #
 # Table name: exports
 #
-#  id                        :bigint           not null, primary key
-#  format                    :string           not null
-#  key                       :text             not null
-#  statut                    :string           default("tous")
-#  time_span_type            :string           default("everything"), not null
-#  created_at                :datetime         not null
-#  updated_at                :datetime         not null
-#  procedure_presentation_id :bigint
+#  id                              :bigint           not null, primary key
+#  format                          :string           not null
+#  key                             :text             not null
+#  procedure_presentation_snapshot :jsonb
+#  statut                          :string           default("tous")
+#  time_span_type                  :string           default("everything"), not null
+#  created_at                      :datetime         not null
+#  updated_at                      :datetime         not null
+#  procedure_presentation_id       :bigint
 #
 class Export < ApplicationRecord
   MAX_DUREE_CONSERVATION_EXPORT = 3.hours
@@ -60,6 +61,8 @@ class Export < ApplicationRecord
   end
 
   def compute
+    load_snapshot!
+
     file.attach(
       io: io,
       filename: filename,
@@ -78,7 +81,11 @@ class Export < ApplicationRecord
   end
 
   def old?
-    updated_at < 20.minutes.ago
+    updated_at < 20.minutes.ago || filters_changed?
+  end
+
+  def filters_changed?
+    procedure_presentation&.snapshot != procedure_presentation_snapshot
   end
 
   def filtered?
@@ -98,7 +105,7 @@ class Export < ApplicationRecord
   end
 
   def self.find_or_create_export(format, groupe_instructeurs, time_span_type: time_span_types.fetch(:everything), statut: statuts.fetch(:tous), procedure_presentation: nil)
-    create_with(groupe_instructeurs: groupe_instructeurs, procedure_presentation: procedure_presentation)
+    create_with(groupe_instructeurs: groupe_instructeurs, procedure_presentation: procedure_presentation, procedure_presentation_snapshot: procedure_presentation&.snapshot)
       .includes(:procedure_presentation)
       .create_or_find_by(format: format,
         time_span_type: time_span_type,
@@ -147,6 +154,12 @@ class Export < ApplicationRecord
 
   private
 
+  def load_snapshot!
+    if procedure_presentation_snapshot.present?
+      procedure_presentation.attributes = procedure_presentation_snapshot
+    end
+  end
+
   def dossiers_for_export
     @dossiers_for_export ||= begin
       dossiers = Dossier.where(groupe_instructeur: groupe_instructeurs)
diff --git a/app/models/procedure_presentation.rb b/app/models/procedure_presentation.rb
index 5eaf64138..4382a02b5 100644
--- a/app/models/procedure_presentation.rb
+++ b/app/models/procedure_presentation.rb
@@ -263,6 +263,10 @@ class ProcedurePresentation < ApplicationRecord
     })
   end
 
+  def snapshot
+    slice(:filters, :sort, :displayed_fields)
+  end
+
   private
 
   def field_id(field)
diff --git a/db/migrate/20220405163206_add_procedure_presentation_snapshot_to_exports.rb b/db/migrate/20220405163206_add_procedure_presentation_snapshot_to_exports.rb
new file mode 100644
index 000000000..2ac3dd06b
--- /dev/null
+++ b/db/migrate/20220405163206_add_procedure_presentation_snapshot_to_exports.rb
@@ -0,0 +1,5 @@
+class AddProcedurePresentationSnapshotToExports < ActiveRecord::Migration[6.1]
+  def change
+    add_column :exports, :procedure_presentation_snapshot, :jsonb
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 36b33644d..4cff9290a 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2022_04_05_110354) do
+ActiveRecord::Schema.define(version: 2022_04_05_163206) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -432,6 +432,7 @@ ActiveRecord::Schema.define(version: 2022_04_05_110354) do
     t.string "format", null: false
     t.text "key", null: false
     t.bigint "procedure_presentation_id"
+    t.jsonb "procedure_presentation_snapshot"
     t.string "statut", default: "tous"
     t.string "time_span_type", default: "everything", null: false
     t.datetime "updated_at", null: false