diff --git a/app/models/administrateur.rb b/app/models/administrateur.rb
index 7bdaa90fa..6fa4f929a 100644
--- a/app/models/administrateur.rb
+++ b/app/models/administrateur.rb
@@ -7,6 +7,7 @@
 #  encrypted_token :string
 #  created_at      :datetime
 #  updated_at      :datetime
+#  user_id         :bigint
 #
 class Administrateur < ApplicationRecord
   include ActiveRecord::SecureToken
diff --git a/app/models/expert.rb b/app/models/expert.rb
index d7f80e2ac..19ccddcc9 100644
--- a/app/models/expert.rb
+++ b/app/models/expert.rb
@@ -5,6 +5,7 @@
 #  id         :bigint           not null, primary key
 #  created_at :datetime         not null
 #  updated_at :datetime         not null
+#  user_id    :bigint
 #
 class Expert < ApplicationRecord
   has_one :user
diff --git a/app/models/instructeur.rb b/app/models/instructeur.rb
index 77682fe5c..66a6e3fb6 100644
--- a/app/models/instructeur.rb
+++ b/app/models/instructeur.rb
@@ -9,6 +9,7 @@
 #  created_at               :datetime
 #  updated_at               :datetime
 #  agent_connect_id         :string
+#  user_id                  :bigint
 #
 class Instructeur < ApplicationRecord
   has_and_belongs_to_many :administrateurs
diff --git a/db/migrate/20220315113510_add_foreign_keys_to_user_related_models.rb b/db/migrate/20220315113510_add_foreign_keys_to_user_related_models.rb
new file mode 100644
index 000000000..07cd3a0ee
--- /dev/null
+++ b/db/migrate/20220315113510_add_foreign_keys_to_user_related_models.rb
@@ -0,0 +1,11 @@
+class AddForeignKeysToUserRelatedModels < ActiveRecord::Migration[6.1]
+  def change
+    # options = { type: :bigint, index: { unique: true }, foreign_key: true, null: true }
+    # add_reference :administrateurs, :user, **options
+    # add_reference :instructeurs,    :user, **options
+    # add_reference :experts,         :user, **options
+    add_column :administrateurs, :user_id, :bigint
+    add_column :instructeurs, :user_id, :bigint
+    add_column :experts, :user_id, :bigint
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 3e2d4a1f7..870305058 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_03_08_110720) do
+ActiveRecord::Schema.define(version: 2022_03_15_113510) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -60,6 +60,7 @@ ActiveRecord::Schema.define(version: 2022_03_08_110720) do
     t.datetime "updated_at"
     t.boolean "active", default: false
     t.string "encrypted_token"
+    t.bigint "user_id"
   end
 
   create_table "administrateurs_instructeurs", id: false, force: :cascade do |t|
@@ -411,6 +412,7 @@ ActiveRecord::Schema.define(version: 2022_03_08_110720) do
   create_table "experts", force: :cascade do |t|
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.bigint "user_id"
   end
 
   create_table "experts_procedures", force: :cascade do |t|
@@ -539,6 +541,7 @@ ActiveRecord::Schema.define(version: 2022_03_08_110720) do
     t.datetime "login_token_created_at"
     t.boolean "bypass_email_login_token", default: false, null: false
     t.string "agent_connect_id"
+    t.bigint "user_id"
     t.index ["agent_connect_id"], name: "index_instructeurs_on_agent_connect_id", unique: true
   end