diff --git a/tests/test_fixtures.py b/tests/test_fixtures.py
index 2c718c54f..13c92f20c 100644
--- a/tests/test_fixtures.py
+++ b/tests/test_fixtures.py
@@ -606,7 +606,7 @@ class Test_django_db_blocker:
     def test_block_manually(self, django_db_blocker):
         try:
             django_db_blocker.block()
-            with pytest.raises(RuntimeError):
+            with pytest.raises(RuntimeError, match="^Database access not allowed,"):
                 Item.objects.exists()
         finally:
             django_db_blocker.restore()
@@ -614,7 +614,7 @@ def test_block_manually(self, django_db_blocker):
     @pytest.mark.django_db
     def test_block_with_block(self, django_db_blocker):
         with django_db_blocker.block():
-            with pytest.raises(RuntimeError):
+            with pytest.raises(RuntimeError, match="^Database access not allowed,"):
                 Item.objects.exists()
 
     def test_unblock_manually(self, django_db_blocker):