diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 128fa7c71..4f0c6c4b0 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -7,7 +7,7 @@ class SessionsController < Devise::SessionsController
     if active_provider.providable_type == 'DatabaseProvider'
       super
     else
-      redirect_post "/users/auth/#{active_provider.strategy_name}", params: { authenticity_token: form_authenticity_token }
+      redirect_post "/users/auth/#{active_provider.strategy_name}"
     end
   end
 end
diff --git a/app/models/auth_provider.rb b/app/models/auth_provider.rb
index 40e55de23..2bcab4c13 100644
--- a/app/models/auth_provider.rb
+++ b/app/models/auth_provider.rb
@@ -30,6 +30,7 @@ class AuthProvider < ApplicationRecord
   validates_with UserUidMappedValidator, if: -> { %w[OAuth2Provider OpenIdConnectProvider].include?(providable_type) }
 
   before_create :set_initial_state
+  after_update :write_config
 
   def build_providable(params)
     raise "Unknown providable_type: #{providable_type}" unless PROVIDABLE_TYPES.include?(providable_type)
@@ -114,4 +115,10 @@ class AuthProvider < ApplicationRecord
     # no providers in the database, he we will be 'active' (see seeds.rb)
     self.status = 'pending' unless AuthProvider.count.zero?
   end
+
+  def write_config
+    return unless status == 'active'
+
+    ProviderConfig.write_active_provider
+  end
 end
diff --git a/test/helpers/auth_provider_helper.rb b/test/helpers/auth_provider_helper.rb
index 7ba055a8d..07d6fb6ab 100644
--- a/test/helpers/auth_provider_helper.rb
+++ b/test/helpers/auth_provider_helper.rb
@@ -41,7 +41,7 @@ module AuthProviderHelper
         issuer: 'https://sso.sleede.dev/auth/realms/master',
         discovery: true,
         client_auth_method: 'basic',
-        scope: %w[openid profile email toto],
+        scope: %w[openid profile email],
         prompt: 'consent',
         send_scope_to_token_endpoint: true,
         profile_url: 'https://sso.sleede.dev/auth/realms/master/account/',
diff --git a/test/integration/auth_providers_test.rb b/test/integration/auth_providers_test.rb
index 9cb3e878f..f7474ab7f 100644
--- a/test/integration/auth_providers_test.rb
+++ b/test/integration/auth_providers_test.rb
@@ -13,6 +13,9 @@ class AuthProvidersTest < ActionDispatch::IntegrationTest
   end
 
   test 'create an auth external provider and activate it' do
+    # clean any existing auth provider config
+    FileUtils.rm('config/auth_provider.yml', force: true)
+
     name = 'GitHub'
     post '/api/auth_providers',
          params: {
@@ -43,6 +46,15 @@ class AuthProvidersTest < ActionDispatch::IntegrationTest
     User.find_each do |u|
       assert_not_nil u.auth_token
     end
+
+    # Check the configuration file
+    assert File.exist?('config/auth_provider.yml')
+    config = ProviderConfig.new
+    assert_equal 'OAuth2Provider', config.providable_type
+    assert_equal name, config.name
+
+    # clean test provider config
+    FileUtils.rm('config/auth_provider.yml', force: true)
   end
 
   test 'update an authentication provider' do
diff --git a/test/integration/open_id_connect_test.rb b/test/integration/open_id_connect_test.rb
index 1dc8ff638..5cc17d415 100644
--- a/test/integration/open_id_connect_test.rb
+++ b/test/integration/open_id_connect_test.rb
@@ -13,6 +13,9 @@ class OpenIdConnectTest < ActionDispatch::IntegrationTest
   end
 
   test 'create and activate an OIDC provider' do
+    # clean any existing auth provider config
+    FileUtils.rm('config/auth_provider.yml', force: true)
+
     name = 'Sleede'
     post '/api/auth_providers',
          params: {
@@ -42,21 +45,13 @@ class OpenIdConnectTest < ActionDispatch::IntegrationTest
     assert_equal 'active', db_provider&.status
     assert_equal AuthProvider.active.id, db_provider&.id
 
-    # TODO, login with the SSO (need debugging)
-    ## The following doesn't work but I can't find out why... Maybe configuring Devise like this is not the right way,
-    ## but when testing the process with Capybara, I always fall with the message "Not found. Authentication passthru."
+    # Check the configuration file
+    assert File.exist?('config/auth_provider.yml')
+    config = ProviderConfig.new
+    assert_equal 'OpenIdConnectProvider', config.providable_type
+    assert_equal name, config.name
 
-    # Simulate an application restart (reload routes and change devise setup)
-    # logout
-    # Devise.setup do |config|
-    #   require_relative '../../lib/omni_auth/openid_connect'
-    #   config.omniauth OmniAuth::Strategies::SsoOpenidConnectProvider.name&.to_sym,
-    #                   db_provider&.providable&.config
-    # end
-    # User.devise :omniauthable, omniauth_providers: [db_provider&.strategy_name&.to_sym]
-    # Rails.application.reload_routes!
-    #
-    # === OR === (need to try)
-    # Rails.application.reloader.reload!
+    # clean test provider config
+    FileUtils.rm('config/auth_provider.yml', force: true)
   end
 end