diff --git a/app/controllers/administrateurs/activate_controller.rb b/app/controllers/administrateurs/activate_controller.rb
index 2d45c0da1..b4bf8346d 100644
--- a/app/controllers/administrateurs/activate_controller.rb
+++ b/app/controllers/administrateurs/activate_controller.rb
@@ -47,7 +47,6 @@ class Administrateurs::ActivateController < ApplicationController
 
     if resource&.valid_password?(password)
       sign_in resource
-      resource.force_sync_credentials
     end
   end
 end
diff --git a/app/controllers/users/confirmations_controller.rb b/app/controllers/users/confirmations_controller.rb
index ec5755987..b66d836be 100644
--- a/app/controllers/users/confirmations_controller.rb
+++ b/app/controllers/users/confirmations_controller.rb
@@ -42,7 +42,6 @@ class Users::ConfirmationsController < Devise::ConfirmationsController
     if sign_in_after_confirmation?(resource)
       resource.remember_me = true
       sign_in(resource)
-      resource.force_sync_credentials
       after_sign_in_path_for(resource_name)
     else
       super(resource_name, resource)
diff --git a/app/controllers/users/sessions_controller.rb b/app/controllers/users/sessions_controller.rb
index 949b58e31..774436d69 100644
--- a/app/controllers/users/sessions_controller.rb
+++ b/app/controllers/users/sessions_controller.rb
@@ -101,7 +101,6 @@ class Users::SessionsController < Devise::SessionsController
       if resource.valid_password?(params[:user][:password])
         resource.remember_me = remember_me
         sign_in resource
-        resource.force_sync_credentials
       end
     end
     resource
diff --git a/app/models/administrateur.rb b/app/models/administrateur.rb
index 0a3007694..9a9f39174 100644
--- a/app/models/administrateur.rb
+++ b/app/models/administrateur.rb
@@ -1,5 +1,4 @@
 class Administrateur < ApplicationRecord
-  include CredentialsSyncableConcern
   include EmailSanitizableConcern
   include ActiveRecord::SecureToken
 
diff --git a/app/models/concerns/credentials_syncable_concern.rb b/app/models/concerns/credentials_syncable_concern.rb
deleted file mode 100644
index f42b4adae..000000000
--- a/app/models/concerns/credentials_syncable_concern.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-module CredentialsSyncableConcern
-  extend ActiveSupport::Concern
-
-  included do
-    after_update :sync_credentials
-  end
-
-  def sync_credentials
-    if saved_change_to_email? || saved_change_to_encrypted_password?
-      return force_sync_credentials
-    end
-    true
-  end
-
-  def force_sync_credentials
-    SyncCredentialsService.new(self.class, email_before_last_save, email, encrypted_password).change_credentials!
-  end
-end
diff --git a/app/models/instructeur.rb b/app/models/instructeur.rb
index b61fd3b2d..5fcb1b205 100644
--- a/app/models/instructeur.rb
+++ b/app/models/instructeur.rb
@@ -1,5 +1,4 @@
 class Instructeur < ApplicationRecord
-  include CredentialsSyncableConcern
   include EmailSanitizableConcern
 
   has_and_belongs_to_many :administrateurs
diff --git a/app/models/user.rb b/app/models/user.rb
index 42f7ceaa1..1f07f518d 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,5 +1,4 @@
 class User < ApplicationRecord
-  include CredentialsSyncableConcern
   include EmailSanitizableConcern
 
   enum loged_in_with_france_connect: {
diff --git a/app/services/sync_credentials_service.rb b/app/services/sync_credentials_service.rb
deleted file mode 100644
index 13322b1f4..000000000
--- a/app/services/sync_credentials_service.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-class SyncCredentialsService
-  def initialize(klass, email_before_last_save, email, encrypted_password)
-    @klass = klass
-    @email_before_last_save = email_before_last_save
-    @email = email
-    @encrypted_password = encrypted_password
-  end
-
-  def change_credentials!
-    if @klass != User
-      user = User.find_by(email: @email_before_last_save)
-      if user && !user.update_columns(email: @email, encrypted_password: @encrypted_password)
-        return false
-      end
-    end
-
-    if @klass != Instructeur
-      instructeur = Instructeur.find_by(email: @email_before_last_save)
-      if instructeur && !instructeur.update_columns(email: @email, encrypted_password: @encrypted_password)
-        return false
-      end
-    end
-
-    if @klass != Administrateur
-      administrateur = Administrateur.find_by(email: @email_before_last_save)
-      if administrateur && !administrateur.update_columns(email: @email, encrypted_password: @encrypted_password)
-        return false
-      end
-    end
-
-    true
-  end
-end