diff --git a/app/models/avis.rb b/app/models/avis.rb
index 4d12a64a1..7203870ea 100644
--- a/app/models/avis.rb
+++ b/app/models/avis.rb
@@ -37,27 +37,6 @@ class Avis < ApplicationRecord
     Avis.find_by(id: avis_id)&.email == email
   end
 
-  # FIXME remove this after migrating virus_scan to blob metadata
-  def virus_scan
-    VirusScan.find_by(blob_key: piece_justificative_file.blob.key)
-  end
-
-  def virus_scan_safe?
-    virus_scan&.safe? || piece_justificative_file.virus_scanner.safe?
-  end
-
-  def virus_scan_infected?
-    virus_scan&.infected? || piece_justificative_file.virus_scanner.infected?
-  end
-
-  def virus_scan_pending?
-    virus_scan&.pending? || piece_justificative_file.virus_scanner.pending?
-  end
-
-  def virus_scan_no_scan?
-    virus_scan.blank? && !piece_justificative_file.virus_scanner.analyzed?
-  end
-
   private
 
   def notify_gestionnaire
diff --git a/app/models/champ.rb b/app/models/champ.rb
index a41e732f3..06bc65871 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -4,7 +4,6 @@ class Champ < ApplicationRecord
   belongs_to :parent, class_name: 'Champ'
   has_many :commentaires
   has_one_attached :piece_justificative_file
-  has_one :virus_scan
 
   # We declare champ specific relationships (Champs::CarteChamp and Champs::SiretChamp)
   # here because otherwise we can't easily use includes in our queries.
diff --git a/app/models/champs/piece_justificative_champ.rb b/app/models/champs/piece_justificative_champ.rb
index bf9a6b453..00ec3a559 100644
--- a/app/models/champs/piece_justificative_champ.rb
+++ b/app/models/champs/piece_justificative_champ.rb
@@ -46,25 +46,8 @@ class Champs::PieceJustificativeChamp < Champ
     errors
   end
 
-  # FIXME remove this after migrating virus_scan to blob metadata
-  def virus_scan_safe?
-    virus_scan&.safe? || piece_justificative_file.virus_scanner.safe?
-  end
-
-  def virus_scan_infected?
-    virus_scan&.infected? || piece_justificative_file.virus_scanner.infected?
-  end
-
-  def virus_scan_pending?
-    virus_scan&.pending? || piece_justificative_file.virus_scanner.pending?
-  end
-
-  def virus_scan_no_scan?
-    virus_scan.blank? && !piece_justificative_file.virus_scanner.analyzed?
-  end
-
   def for_api
-    if piece_justificative_file.attached? && (virus_scan_safe? || virus_scan_pending?)
+    if piece_justificative_file.attached? && (piece_justificative_file.virus_scanner.safe? || piece_justificative_file.virus_scanner.pending?)
       Rails.application.routes.url_helpers.url_for(piece_justificative_file)
     end
   end
diff --git a/app/models/virus_scan.rb b/app/models/virus_scan.rb
deleted file mode 100644
index c6d108164..000000000
--- a/app/models/virus_scan.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class VirusScan < ApplicationRecord
-  belongs_to :champ
-
-  enum status: {
-    pending: 'pending',
-    safe: 'safe',
-    infected: 'infected'
-  }
-end
diff --git a/app/views/gestionnaires/shared/avis/_list.html.haml b/app/views/gestionnaires/shared/avis/_list.html.haml
index c5837aac5..25f6866ed 100644
--- a/app/views/gestionnaires/shared/avis/_list.html.haml
+++ b/app/views/gestionnaires/shared/avis/_list.html.haml
@@ -28,6 +28,6 @@
                     Réponse donnée le #{l(avis.updated_at, format: '%d/%m/%y à %H:%M')}
                 - else
                   %span.waiting En attente de réponse
-              = render partial: 'shared/piece_jointe/pj_link', locals: { object: avis, pj: avis.piece_justificative_file }
+              = render partial: 'shared/piece_jointe/pj_link', locals: { pj: avis.piece_justificative_file, user_can_upload: false }
               .answer-body
                 = simple_format(avis.answer)
diff --git a/app/views/shared/champs/piece_justificative/_show.html.haml b/app/views/shared/champs/piece_justificative/_show.html.haml
index 2332a8fc7..c02510d25 100644
--- a/app/views/shared/champs/piece_justificative/_show.html.haml
+++ b/app/views/shared/champs/piece_justificative/_show.html.haml
@@ -1,5 +1,5 @@
 - pj = champ.piece_justificative_file
 - if pj.attached?
-  = render partial: "shared/piece_jointe/pj_link", locals: { object: champ, pj: pj, user_can_upload: false }
+  = render partial: "shared/piece_jointe/pj_link", locals: { pj: pj, user_can_upload: false }
 - else
   Pièce justificative non fournie
diff --git a/app/views/shared/dossiers/editable_champs/_piece_justificative.html.haml b/app/views/shared/dossiers/editable_champs/_piece_justificative.html.haml
index a20ba19d7..63cbc411b 100644
--- a/app/views/shared/dossiers/editable_champs/_piece_justificative.html.haml
+++ b/app/views/shared/dossiers/editable_champs/_piece_justificative.html.haml
@@ -9,7 +9,7 @@
   - if pj.attached?
     .piece-justificative-actions{ id: "piece_justificative_#{champ.id}" }
       .piece-justificative-action
-        = render partial: "shared/piece_jointe/pj_link", locals: { object: champ, pj: champ.piece_justificative_file, user_can_upload: true }
+        = render partial: "shared/piece_jointe/pj_link", locals: { pj: pj, user_can_upload: true }
       .piece-justificative-action
         - if champ.private?
           = link_to 'Supprimer', gestionnaire_champ_purge_champ_piece_justificative_path(procedure_id: champ.dossier.procedure_id, dossier_id: champ.dossier_id, champ_id: champ.id), remote: true, method: :delete, class: 'button small danger'
diff --git a/app/views/shared/piece_jointe/_pj_link.html.haml b/app/views/shared/piece_jointe/_pj_link.html.haml
index e6d804918..0c75f967c 100644
--- a/app/views/shared/piece_jointe/_pj_link.html.haml
+++ b/app/views/shared/piece_jointe/_pj_link.html.haml
@@ -1,19 +1,19 @@
 - if pj.attached?
   .pj-link
-    - if object.virus_scan_safe? || object.virus_scan_no_scan?
+    - if pj.virus_scanner.safe? || !pj.virus_scanner.analyzed?
       = link_to url_for(pj), target: '_blank', rel: 'noopener',  title: "Télécharger la pièce jointe" do
         %span.icon.attachment
         = pj.filename.to_s
-      - if object.virus_scan_no_scan?
+      - if !pj.virus_scanner.analyzed?
         (ce fichier n’a pas été analysé par notre antivirus, téléchargez-le avec précaution)
 
     - else
       = pj.filename.to_s
-      - if object.virus_scan_pending?
+      - if pj.virus_scanner.pending?
         (analyse antivirus en cours
         = link_to "rafraichir", request.path
         )
-      - elsif object.virus_scan_infected?
+      - elsif pj.virus_scanner.infected?
         - if user_can_upload
           (virus détecté, merci d’envoyer un autre fichier)
         - else
diff --git a/app/views/shared/piece_jointe/_pj_upload_field.haml b/app/views/shared/piece_jointe/_pj_upload_field.haml
index 1c2e95dce..8faf0d3de 100644
--- a/app/views/shared/piece_jointe/_pj_upload_field.haml
+++ b/app/views/shared/piece_jointe/_pj_upload_field.haml
@@ -2,7 +2,7 @@
   - if pj.attached?
     .piece-justificative-actions{ id: "piece_justificative_#{object.id}" }
       .piece-justificative-action
-        = render partial: "shared/piece_jointe/pj_link", locals: { object: object, pj: object.piece_justificative_file, user_can_upload: true }
+        = render partial: "shared/piece_jointe/pj_link", locals: { pj: pj, user_can_upload: true }
       .piece-justificative-action
         = button_tag 'Remplacer', type: 'button', class: 'button small', data: { 'toggle-target': "#champs_#{object.id}" }
 
diff --git a/package.json b/package.json
index d33cbdce5..61fbe0f21 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "debounce": "^1.2.0",
     "dom4": "^2.1.4",
     "highcharts": "^6.1.2",
-    "jquery": "^3.4.0",
+    "jquery": "^3.4.1",
     "leaflet": "^1.4.0",
     "leaflet-freedraw": "^2.10.0",
     "prop-types": "^15.7.2",
diff --git a/spec/factories/virus_scan.rb b/spec/factories/virus_scan.rb
deleted file mode 100644
index 1ffade312..000000000
--- a/spec/factories/virus_scan.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-FactoryBot.define do
-  factory :virus_scan do
-    add_attribute(:status) { VirusScan.statuses.fetch(:pending) }
-
-    trait :pending do
-      add_attribute(:status) { VirusScan.statuses.fetch(:pending) }
-    end
-
-    trait :safe do
-      add_attribute(:status) { VirusScan.statuses.fetch(:safe) }
-    end
-
-    trait :infected do
-      add_attribute(:status) { VirusScan.statuses.fetch(:infected) }
-    end
-  end
-end
diff --git a/spec/views/shared/piece_jointe/_pj_link.html.haml_spec.rb b/spec/views/shared/piece_jointe/_pj_link.html.haml_spec.rb
index 9bf655204..04fbe495b 100644
--- a/spec/views/shared/piece_jointe/_pj_link.html.haml_spec.rb
+++ b/spec/views/shared/piece_jointe/_pj_link.html.haml_spec.rb
@@ -8,7 +8,7 @@ describe 'shared/piece_jointe/_pj_link.html.haml', type: :view do
     champ.piece_justificative_file.blob.update(metadata: champ.piece_justificative_file.blob.metadata.merge(virus_scan_result: virus_scan_result))
   end
 
-  subject { render 'shared/piece_jointe/pj_link', object: champ, pj: champ.piece_justificative_file, user_can_upload: false }
+  subject { render 'shared/piece_jointe/pj_link', pj: champ.piece_justificative_file, user_can_upload: false }
 
   context 'when there is no anti-virus scan' do
     let(:virus_scan_result) { nil }
diff --git a/yarn.lock b/yarn.lock
index e319784e1..1b9ccd07f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4510,10 +4510,10 @@ jquery-mousewheel@~3.1.13:
   resolved "https://registry.yarnpkg.com/jquery-mousewheel/-/jquery-mousewheel-3.1.13.tgz#06f0335f16e353a695e7206bf50503cb523a6ee5"
   integrity sha1-BvAzXxbjU6aV5yBr9QUDy1I6buU=
 
-jquery@^3.4.0:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.4.0.tgz#8de513fa0fa4b2c7d2e48a530e26f0596936efdf"
-  integrity sha512-ggRCXln9zEqv6OqAGXFEcshF5dSBvCkzj6Gm2gzuR5fWawaX8t7cxKVkkygKODrDAzKdoYw3l/e3pm3vlT4IbQ==
+jquery@^3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.4.1.tgz#714f1f8d9dde4bdfa55764ba37ef214630d80ef2"
+  integrity sha512-36+AdBzCL+y6qjw5Tx7HgzeGCzC81MDDgaUP8ld2zhx58HdqXGoBd+tHdrBMiyjGQs0Hxs/MLZTu/eHNJJuWPw==
 
 js-base64@^2.1.8:
   version "2.5.1"