diff --git a/tests/filtered_relation/tests.py b/tests/filtered_relation/tests.py
index e263307193cc..d15dd0d5f60f 100644
--- a/tests/filtered_relation/tests.py
+++ b/tests/filtered_relation/tests.py
@@ -381,7 +381,7 @@ def test_union(self):
                 "book", condition=Q(book__title__iexact="the book by jane a")
             ),
         ).filter(book_jane__isnull=False)
-        self.assertSequenceEqual(qs1.union(qs2), [self.author1, self.author2])
+        self.assertCountEqual(qs1.union(qs2), [self.author1, self.author2])
 
     @skipUnlessDBFeature("supports_select_intersection")
     def test_intersection(self):