diff --git a/README.md b/README.md
index 7edaf53..b2561f9 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,7 @@ Maybe other versions are compatible, too.
 [comment]: <> (✂✂✂ auto generated history start ✂✂✂)
 
 * [v0.18.0](https://github.com/jedie/django-reversion-compare/compare/v0.17.0...v0.18.0)
+  * 2024-09-10 - modernized code
   * 2024-09-10 - Update test matrix and requirements
   * 2024-09-10 - Apply manageprojects updates
   * 2024-09-10 - Update requirements
diff --git a/reversion_compare/admin.py b/reversion_compare/admin.py
index 93d4ad3..6c0ba57 100644
--- a/reversion_compare/admin.py
+++ b/reversion_compare/admin.py
@@ -256,11 +256,10 @@ class CompareVersionAdmin(CompareMethodsMixin, BaseCompareVersionAdmin):
     class to inherit
     """
 
-    pass
-
 
 if hasattr(settings, "ADD_REVERSION_ADMIN") and settings.ADD_REVERSION_ADMIN:
 
+    @admin.register(Revision)
     class RevisionAdmin(admin.ModelAdmin):
         list_display = ("id", "date_created", "user", "comment")
         list_display_links = ("date_created",)
@@ -271,8 +270,7 @@ class RevisionAdmin(admin.ModelAdmin):
         search_fields = ("user", "comment")
         raw_id_fields = ("user",)
 
-    admin.site.register(Revision, RevisionAdmin)
-
+    @admin.register(Version)
     class VersionAdmin(admin.ModelAdmin):
         def comment(self, obj):
             return obj.revision.comment
@@ -282,5 +280,3 @@ def comment(self, obj):
         list_select_related = ("revision", "content_type")
         search_fields = ("object_repr", "serialized_data")
         raw_id_fields = ("revision", "content_type")
-
-    admin.site.register(Version, VersionAdmin)
diff --git a/reversion_compare_project/admin.py b/reversion_compare_project/admin.py
index 4aef1a5..a8cec8c 100644
--- a/reversion_compare_project/admin.py
+++ b/reversion_compare_project/admin.py
@@ -29,71 +29,51 @@
 )
 
 
+@admin.register(SimpleModel)
 class SimpleModelAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(SimpleModel, SimpleModelAdmin)
-
-
+@admin.register(MigrationModel)
 class MigrationModelAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(MigrationModel, MigrationModelAdmin)
-
-
+@admin.register(Factory)
 class FactoryAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(Factory, FactoryAdmin)
-
-
+@admin.register(Car)
 class CarAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(Car, CarAdmin)
-
-
+@admin.register(Person)
 class PersonAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(Person, PersonAdmin)
-
-
+@admin.register(Pet)
 class PetAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(Pet, PetAdmin)
-
-
+@admin.register(VariantModel)
 class VariantModelAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(VariantModel, VariantModelAdmin)
-
-
+@admin.register(CustomModel, Identity)
 class CustomModelAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(CustomModel, CustomModelAdmin)
-
-admin.site.register(Identity, CustomModelAdmin)
-
-
+@admin.register(TemplateField)
 class TemplateFieldModelAdmin(CompareVersionAdmin):
     pass
 
 
-admin.site.register(TemplateField, TemplateFieldModelAdmin)
-
-
 @admin.register(CountryFieldTestModel)
 class CountryFieldTestModelAdmin(CompareVersionAdmin):
     pass
diff --git a/reversion_compare_project/settings.py b/reversion_compare_project/settings.py
index 86ab7fd..0676599 100644
--- a/reversion_compare_project/settings.py
+++ b/reversion_compare_project/settings.py
@@ -47,7 +47,6 @@
 
 LANGUAGE_CODE = 'en-us'
 USE_I18N = True
-USE_L10N = True
 USE_TZ = True
 LOCALE_PATHS = (BASE_DIR.parent / 'reversion_compare' / 'locale',)
 
diff --git a/reversion_compare_project/settings/prod.py b/reversion_compare_project/settings/prod.py
index 4ef19d9..a5eb849 100644
--- a/reversion_compare_project/settings/prod.py
+++ b/reversion_compare_project/settings/prod.py
@@ -114,7 +114,6 @@
     ('en', _('English')),
 ]
 USE_I18N = True
-USE_L10N = True
 TIME_ZONE = 'Europe/Paris'
 USE_TZ = True
 
diff --git a/reversion_compare_project/tests/test_admin.py b/reversion_compare_project/tests/test_admin.py
index 7852e4e..7904ff7 100644
--- a/reversion_compare_project/tests/test_admin.py
+++ b/reversion_compare_project/tests/test_admin.py
@@ -12,11 +12,11 @@ class AdminAnonymousTests(HtmlAssertionMixin, TestCase):
     """
 
     def test_login_en(self):
-        response = self.client.get("/en/admin/", HTTP_ACCEPT_LANGUAGE="en")
+        response = self.client.get("/en/admin/", headers={"accept-language": "en"})
         self.assertRedirects(response, expected_url="/en/admin/login/?next=/en/admin/")
 
     def test_login_de(self):
-        response = self.client.get("/de/admin/", HTTP_ACCEPT_LANGUAGE="de")
+        response = self.client.get("/de/admin/", headers={"accept-language": "de"})
         self.assertRedirects(response, expected_url="/de/admin/login/?next=/de/admin/")
 
 
@@ -53,7 +53,7 @@ def test_model_registering(self):
     def test_staff_admin_index(self):
         self.client.force_login(self.staffuser)
 
-        response = self.client.get("/en/admin/", HTTP_ACCEPT_LANGUAGE="en")
+        response = self.client.get("/en/admin/", headers={"accept-language": "en"})
         self.assert_html_parts(
             response,
             parts=(
@@ -67,7 +67,7 @@ def test_staff_admin_index(self):
 
     def test_superuser_admin_index(self):
         self.client.force_login(self.superuser)
-        response = self.client.get("/en/admin/", HTTP_ACCEPT_LANGUAGE="en")
+        response = self.client.get("/en/admin/", headers={"accept-language": "en"})
         self.assert_html_parts(
             response,
             parts=(
diff --git a/reversion_compare_project/urls.py b/reversion_compare_project/urls.py
index 91099a8..478567d 100644
--- a/reversion_compare_project/urls.py
+++ b/reversion_compare_project/urls.py
@@ -1,8 +1,8 @@
 from django.conf import settings
-from django.conf.urls import include, static
+from django.conf.urls import static
 from django.conf.urls.i18n import i18n_patterns
 from django.contrib import admin
-from django.urls import path
+from django.urls import include, path
 from django.views.generic import RedirectView
 
 from reversion_compare_project.views import SimpleModelHistoryCompareView