diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bf6464912..136b3ef29 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,20 +8,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11', '3.12']
         requirements-file: [
-          django-3.2.txt,
-          django-4.0.txt,
-          django-4.1.txt,
           django-4.2.txt,
           django-5.0.txt,
+          django-main.txt,
         ]
         custom-image-model: [false, true]
-        exclude:
-          - requirements-file: django-5.0.txt
-            python-version: 3.8
-          - requirements-file: django-5.0.txt
-            python-version: 3.9
         os: [
           ubuntu-20.04,
         ]
diff --git a/filer/models/filemodels.py b/filer/models/filemodels.py
index ad77031c2..0a6cb4077 100644
--- a/filer/models/filemodels.py
+++ b/filer/models/filemodels.py
@@ -344,19 +344,24 @@ def has_generic_permission(self, request, permission_type):
         else:
             return False
 
-    def get_admin_change_url(self):
+    def get_admin_url(self, action):
         return reverse(
-            'admin:{}_{}_change'.format(
+            'admin:{}_{}_{}'.format(
                 self._meta.app_label,
                 self._meta.model_name,
+                action
             ),
             args=(self.pk,)
         )
 
+    def get_admin_change_url(self):
+        return self.get_admin_url("change")
+
+    def get_admin_expand_view_url(self):
+        return self.get_admin_url("expand")
+
     def get_admin_delete_url(self):
-        return reverse(
-            f'admin:{self._meta.app_label}_{self._meta.model_name}_delete',
-            args=(self.pk,))
+        return self.get_admin_url("delete")
 
     @property
     def url(self):
diff --git a/filer/templates/admin/filer/folder/directory_table_list.html b/filer/templates/admin/filer/folder/directory_table_list.html
index 2ba08c477..096c34bb5 100644
--- a/filer/templates/admin/filer/folder/directory_table_list.html
+++ b/filer/templates/admin/filer/folder/directory_table_list.html
@@ -139,7 +139,7 @@
                             </td>
                             <td class="column-action">
                                 {% if file.canonical_url %}
-                                    <a href="{% if 'svg' in file.mime_type %}{% url 'admin:filer_image_expand_view' file.pk %}{% else %}{{ file.canonical_url }}{% endif %}"
+                                    <a href="{% if 'svg' in file.mime_type %}{{ file.get_admin_expand_view_url }}{% else %}{{ file.canonical_url }}{% endif %}"
                                        data-url="{{ file.canonical_url }}"
                                        data-msg="{% trans 'URL copied to clipboard' %}"
                                        rel="noopener noreferrer"
diff --git a/tests/requirements/django-main.txt b/tests/requirements/django-main.txt
new file mode 100644
index 000000000..c35200e8f
--- /dev/null
+++ b/tests/requirements/django-main.txt
@@ -0,0 +1,4 @@
+-r base.txt
+
+git+https://github.com/django/django@main#egg=Django
+django_polymorphic>=3.1
diff --git a/tests/test_admin.py b/tests/test_admin.py
index 5ab156417..13e56ff66 100644
--- a/tests/test_admin.py
+++ b/tests/test_admin.py
@@ -375,6 +375,7 @@ def test_image_expand_view(self):
 
         response = self.client.get(url)
 
+        self.assertEqual(url, self.file_object.get_admin_expand_view_url())
         self.assertContains(
             response,
             f"""<img id="img" src="{original_url}" onclick="this.classList.toggle('zoom')"/>"""
diff --git a/tox.ini b/tox.ini
index f81e1db80..d04a03bd2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,26 +4,24 @@ envlist =
     isort
     docs
     frontend
-    py{38,39,310}-dj32-{swap,noswap}
-    py{38,39,310,311}-{dj40,dj41,dj42}-{swap,noswap}
-    py{310,311}-{dj50}-{swap,noswap}
+    py{310,311,312}-{dj42,dj50,djmain}-{swap,noswap}
 
 [gh-actions]
 python =
-    3.8: py38
-    3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 skip_missing_interpreters=True
 
 [testenv]
+allowlist_externals =
+    {env:COMMAND:coverage}
+    {envpython}
 deps =
-    dj32: -r tests/requirements/django-3.2.txt
-    dj40: -r tests/requirements/django-4.0.txt
-    dj41: -r tests/requirements/django-4.1.txt
     dj42: -r tests/requirements/django-4.2.txt
     dj50: -r tests/requirements/django-5.0.txt
+    djmain: -r tests/requirements/django-main.txt
 commands =
     {envpython} --version
     {env:COMMAND:coverage} erase