diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3bbd824f..32ca4d49 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
       matrix:
         os: [ubuntu-20.04]
         python-version: ['3.8']
-        toxenv: [django32, django40, quality, pii_check]
+        toxenv: [django32, django42, quality, pii_check]
 
     steps:
     - uses: actions/checkout@v2
@@ -38,7 +38,7 @@ jobs:
       run: tox
 
     - name: Run coverage
-      if: matrix.python-version == '3.8' && matrix.toxenv == 'django32'
+      if: matrix.python-version == '3.8' && matrix.toxenv == 'django42'
       uses: codecov/codecov-action@v1
       with:
         flags: unittests
diff --git a/edx_exams/apps/core/admin.py b/edx_exams/apps/core/admin.py
index aabb365a..b726721d 100644
--- a/edx_exams/apps/core/admin.py
+++ b/edx_exams/apps/core/admin.py
@@ -17,6 +17,7 @@
 )
 
 
+@admin.register(User)
 class CustomUserAdmin(UserAdmin):
     """ Admin configuration for the custom User model. """
     list_display = ('username', 'email', 'full_name', 'first_name', 'last_name', 'is_staff')
@@ -29,6 +30,7 @@ class CustomUserAdmin(UserAdmin):
     )
 
 
+@admin.register(ProctoringProvider)
 class ProctoringProviderAdmin(admin.ModelAdmin):
     """ Admin configuration for the Proctoring Provider model """
     list_display = ('name', 'verbose_name', 'lti_configuration_id')
@@ -36,6 +38,7 @@ class ProctoringProviderAdmin(admin.ModelAdmin):
     ordering = ('name',)
 
 
+@admin.register(Exam)
 class ExamAdmin(admin.ModelAdmin):
     """ Admin configuration for the Exam model """
     list_display = ('course_id', 'provider', 'exam_name', 'exam_type', 'due_date', 'is_active')
@@ -46,6 +49,7 @@ class ExamAdmin(admin.ModelAdmin):
     ordering = ('-is_active', 'course_id', 'exam_name',)
 
 
+@admin.register(ExamAttempt)
 class ExamAttemptAdmin(admin.ModelAdmin):
     """ Admin configuration for the Exam Attempt model """
     list_display = ('user', 'exam', 'attempt_number', 'status', 'start_time',
@@ -63,6 +67,7 @@ def change_view(self, request, object_id, form_url='', extra_context=None):
         )
 
 
+@admin.register(CourseExamConfiguration)
 class CourseExamConfigurationAdmin(admin.ModelAdmin):
     """ Admin configuration for the Course Exam Configuration model """
     list_display = ('course_id', 'provider', 'allow_opt_out')
@@ -71,6 +76,7 @@ class CourseExamConfigurationAdmin(admin.ModelAdmin):
     ordering = ('course_id',)
 
 
+@admin.register(AssessmentControlResult)
 class AssessmentControlResultAdmin(admin.ModelAdmin):
     """ Admin configuration for the AssessmentControlResult model """
     list_display = ('get_username', 'get_course_id', 'get_exam_name')
@@ -87,18 +93,10 @@ def get_exam_name(self, obj):
         return obj.attempt.exam.exam_name
 
 
+@admin.register(CourseStaffRole)
 class CourseStaffRoleAdmin(admin.ModelAdmin):
     """ Admin configuration for the Course Staff Role model """
     list_display = ('user', 'course_id')
     list_filter = ('course_id',)
     search_fields = ('user__username', 'course_id')
     ordering = ('course_id',)
-
-
-admin.site.register(User, CustomUserAdmin)
-admin.site.register(ProctoringProvider, ProctoringProviderAdmin)
-admin.site.register(Exam, ExamAdmin)
-admin.site.register(ExamAttempt, ExamAttemptAdmin)
-admin.site.register(CourseExamConfiguration, CourseExamConfigurationAdmin)
-admin.site.register(AssessmentControlResult, AssessmentControlResultAdmin)
-admin.site.register(CourseStaffRole, CourseStaffRoleAdmin)
diff --git a/tox.ini b/tox.ini
index 5983be05..f79a6c3a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py38-django{32,40}, quality, docs, pii_check
+envlist = py38-django{32,42}, quality, docs, pii_check
 skipsdist = true
 
 [doc8]
@@ -44,7 +44,7 @@ filterwarnings =
 [testenv]
 deps =
     django32: Django>=3.2,<4.0
-    django40: Django>=4.0,<4.1
+    django42: Django>=4.2,<4.3
     -r{toxinidir}/requirements/test.txt
 commands =
     pytest {posargs}