diff --git a/tests/test_translating.py b/tests/test_translating.py
index f3281b7..36b8300 100644
--- a/tests/test_translating.py
+++ b/tests/test_translating.py
@@ -1,3 +1,4 @@
+import django
 from django.core.exceptions import ImproperlyConfigured, ValidationError
 from django.db import models
 from django.test import TestCase
@@ -289,9 +290,11 @@ def test_limit_choices_to(self):
         comment = app_models.Comment.objects.create(post=published_post, text="foo")
         self.assertIsNotNone(comment.pk)
 
-        with self.assertRaisesMessage(
-            ValidationError,
-            f"post instance with id {unpublished_post.pk} does not exist",
-        ):
+        if django.get_version().startswith("5.1"):
+            expected = f"post instance with id {unpublished_post.pk} is not a valid choice."
+        else:
+            expected = f"post instance with id {unpublished_post.pk} does not exist"
+
+        with self.assertRaisesMessage(ValidationError, expected):
             comment.post = unpublished_post
             comment.full_clean()