diff --git a/app/controllers/new_gestionnaire/procedures_controller.rb b/app/controllers/new_gestionnaire/procedures_controller.rb
index 330df66f1..8d7ea32c5 100644
--- a/app/controllers/new_gestionnaire/procedures_controller.rb
+++ b/app/controllers/new_gestionnaire/procedures_controller.rb
@@ -102,11 +102,9 @@ module NewGestionnaire
       fields = values.map do |value|
         table, column = value.split("/")
 
-        c = procedure.fields.find do |field|
+        procedure.fields.find do |field|
           field['table'] == table && field['column'] == column
         end
-
-        c.to_json
       end
 
       procedure_presentation.update(displayed_fields: fields)
@@ -134,7 +132,7 @@ module NewGestionnaire
         'table' => table,
         'column' => column,
         'order' => order
-      }.to_json
+      }
 
       procedure_presentation.update(sort: sort)
 
@@ -154,7 +152,7 @@ module NewGestionnaire
           'value' => params[:value]
         }
 
-        procedure_presentation.update(filters: filters.to_json)
+        procedure_presentation.update(filters: filters)
       end
 
       redirect_back(fallback_location: gestionnaire_procedure_url(procedure))
@@ -168,7 +166,7 @@ module NewGestionnaire
 
       filters[statut] = filters[statut] - [filter_to_remove]
 
-      procedure_presentation.update(filters: filters.to_json)
+      procedure_presentation.update(filters: filters)
 
       redirect_back(fallback_location: gestionnaire_procedure_url(procedure))
     end
diff --git a/app/models/procedure.rb b/app/models/procedure.rb
index f83227269..2f2c10855 100644
--- a/app/models/procedure.rb
+++ b/app/models/procedure.rb
@@ -307,7 +307,7 @@ class Procedure < ApplicationRecord
       'table' => 'self',
       'column' => 'id',
       'order' => 'desc'
-    }.to_json
+    }
   end
 
   def whitelist!
diff --git a/app/models/procedure_presentation.rb b/app/models/procedure_presentation.rb
index ce0fc8b9d..b3a54252b 100644
--- a/app/models/procedure_presentation.rb
+++ b/app/models/procedure_presentation.rb
@@ -1,17 +1,3 @@
 class ProcedurePresentation < ApplicationRecord
   belongs_to :assign_to
-
-  def displayed_fields
-    read_attribute(:displayed_fields).map do |field|
-      field = JSON.parse(field)
-    end
-  end
-
-  def sort
-    JSON.parse(read_attribute(:sort))
-  end
-
-  def filters
-    JSON.parse(read_attribute(:filters))
-  end
 end
diff --git a/db/migrate/20180919084403_change_procedure_presentation_fields_to_jsonb.rb b/db/migrate/20180919084403_change_procedure_presentation_fields_to_jsonb.rb
new file mode 100644
index 000000000..df00c18f6
--- /dev/null
+++ b/db/migrate/20180919084403_change_procedure_presentation_fields_to_jsonb.rb
@@ -0,0 +1,10 @@
+class ChangeProcedurePresentationFieldsToJsonb < ActiveRecord::Migration[5.2]
+  def change
+    change_table(:procedure_presentations) do |t|
+      t.rename :displayed_fields, :old_displayed_fields
+      t.column :displayed_fields, :jsonb, null: false, default: [{ label: "Demandeur", table: "user", column: "email" }]
+      t.change :sort, :jsonb, default: { table: "notifications", column: "notifications", order: "desc" }
+      t.change :filters, :jsonb, default: { "a-suivre": [], suivis: [], traites: [], tous: [], archives: [] }
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 659191725..c4326d89f 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: 2018_09_13_160415) do
+ActiveRecord::Schema.define(version: 2018_09_19_084403) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -444,11 +444,12 @@ ActiveRecord::Schema.define(version: 2018_09_13_160415) do
 
   create_table "procedure_presentations", id: :serial, force: :cascade do |t|
     t.integer "assign_to_id"
-    t.text "displayed_fields", default: ["{\"label\":\"Demandeur\",\"table\":\"user\",\"column\":\"email\"}"], null: false, array: true
-    t.json "sort", default: "{\"table\":\"notifications\",\"column\":\"notifications\",\"order\":\"desc\"}", null: false
-    t.json "filters", default: "{\"a-suivre\":[],\"suivis\":[],\"traites\":[],\"tous\":[],\"archives\":[]}", null: false
+    t.text "old_displayed_fields", default: ["{\"label\":\"Demandeur\",\"table\":\"user\",\"column\":\"email\"}"], null: false, array: true
+    t.jsonb "sort", default: {"order"=>"desc", "table"=>"notifications", "column"=>"notifications"}, null: false
+    t.jsonb "filters", default: {"tous"=>[], "suivis"=>[], "traites"=>[], "a-suivre"=>[], "archives"=>[]}, null: false
     t.datetime "created_at"
     t.datetime "updated_at"
+    t.jsonb "displayed_fields", default: [{"label"=>"Demandeur", "table"=>"user", "column"=>"email"}], null: false
     t.index ["assign_to_id"], name: "index_procedure_presentations_on_assign_to_id", unique: true
   end
 
diff --git a/lib/tasks/2018_09_20_procedure_presentation_jsonb.rake b/lib/tasks/2018_09_20_procedure_presentation_jsonb.rake
new file mode 100644
index 000000000..b2eeecfcd
--- /dev/null
+++ b/lib/tasks/2018_09_20_procedure_presentation_jsonb.rake
@@ -0,0 +1,11 @@
+namespace :'2018_09_20_procedure_presentation_jsonb' do
+  task run: :environment do
+    ProcedurePresentation.update_all(
+      <<~SQL
+        displayed_fields = ('[' || ARRAY_TO_STRING(old_displayed_fields, ',') || ']')::JSONB,
+        sort = (sort  #>> '{}')::jsonb,
+        filters = (filters  #>> '{}')::jsonb
+      SQL
+    )
+  end
+end
diff --git a/spec/models/procedure_presentation_spec.rb b/spec/models/procedure_presentation_spec.rb
index 4d018ec23..cdf7099b6 100644
--- a/spec/models/procedure_presentation_spec.rb
+++ b/spec/models/procedure_presentation_spec.rb
@@ -4,11 +4,11 @@ describe ProcedurePresentation do
   let (:procedure_presentation_id) {
     ProcedurePresentation.create(
       displayed_fields: [
-        { "label" => "test1", "table" => "user" }.to_json,
-        { "label" => "test2", "table" => "champs" }.to_json
+        { "label" => "test1", "table" => "user" },
+        { "label" => "test2", "table" => "champs" }
       ],
-      sort: { "table" => "user","column" => "email","order" => "asc" }.to_json,
-      filters: { "a-suivre" => [], "suivis" => [{ "label" => "label1", "table" => "table1", "column" => "column1" }] }.to_json
+      sort: { "table" => "user","column" => "email","order" => "asc" },
+      filters: { "a-suivre" => [], "suivis" => [{ "label" => "label1", "table" => "table1", "column" => "column1" }] }
     ).id
   }
   let (:procedure_presentation) { ProcedurePresentation.find(procedure_presentation_id) }
diff --git a/spec/models/procedure_spec.rb b/spec/models/procedure_spec.rb
index 43ae0c653..d41f2413a 100644
--- a/spec/models/procedure_spec.rb
+++ b/spec/models/procedure_spec.rb
@@ -690,7 +690,7 @@ describe Procedure do
   end
 
   describe ".default_sort" do
-    it { expect(Procedure.default_sort).to eq("{\"table\":\"self\",\"column\":\"id\",\"order\":\"desc\"}") }
+    it { expect(Procedure.default_sort).to eq({ "table" => "self", "column" => "id", "order" => "desc" }) }
   end
 
   describe "#export_filename" do