diff --git a/nested_admin/compat.py b/nested_admin/compat.py
index 270b898..41642a1 100644
--- a/nested_admin/compat.py
+++ b/nested_admin/compat.py
@@ -4,6 +4,7 @@
 See https://github.com/django/django/commit/c19b56f633e172b3c02094cbe12d28865ee57772
 and https://code.djangoproject.com/ticket/28377
 """
+
 from collections import defaultdict, OrderedDict
 import warnings
 
@@ -27,13 +28,19 @@ class MediaOrderConflictWarning(RuntimeWarning):
         CyclicDependencyError,
         stable_topological_sort,
     )
+
+    has_topological_sort = True
 except ImportError:
+    try:
+        from django.forms.widgets import TopologicalSorter
+    except ImportError:
+        has_topological_sort = False
+    else:
+        has_topological_sort = True
 
     class CyclicDependencyError(ValueError):
         pass
 
-    stable_topological_sort = None
-
 
 class OrderedSet(_OrderedSet):
     def __sub__(self, other):
@@ -46,7 +53,7 @@ def __repr__(self):
         return "OrderedSet(%r)" % list(self)
 
 
-if MergeSafeMedia is None or stable_topological_sort is None:
+if MergeSafeMedia is None or not has_topological_sort:
 
     def linearize_as_needed(l, dependency_graph):
         # Algorithm: DFS Topological sort
diff --git a/nested_admin/tests/admin_widgets/tests.py b/nested_admin/tests/admin_widgets/tests.py
index 8f4527f..1a65e14 100644
--- a/nested_admin/tests/admin_widgets/tests.py
+++ b/nested_admin/tests/admin_widgets/tests.py
@@ -406,7 +406,11 @@ def test_nested_autocomplete_extra(self):
         self.add_inline([0, 1, [0]])
         select_field = self.get_field("fk3", indexes=[0, 1, [0, 0]])
         select_parent = select_field.find_element(By.XPATH, "parent::*")
-        select_parent.click()
+        self.selenium.execute_script(
+            "return arguments[0].querySelector('.select2-selection') || arguments[0]",
+            select_parent
+        ).click()
+
         select2_is_active = self.selenium.execute_script(
             'return $(".select2-search__field").length > 0'
         )