diff --git a/requirements.txt b/requirements.txt
index 6fc5abe03..73cf5b94b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,6 +29,6 @@ notifications-python-client>=3.1,<3.2
 awscli>=1.11,<1.12
 awscli-cwlogs>=1.4,<1.5
 
-git+https://github.com/alphagov/notifications-utils.git@13.9.5#egg=notifications-utils==13.9.5
+git+https://github.com/alphagov/notifications-utils.git@13.9.6#egg=notifications-utils==13.9.6
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
diff --git a/tests/app/celery/test_tasks.py b/tests/app/celery/test_tasks.py
index 5c38f6cfc..01b80c3fb 100644
--- a/tests/app/celery/test_tasks.py
+++ b/tests/app/celery/test_tasks.py
@@ -1083,4 +1083,4 @@ def test_dvla_letter_template(sample_letter_notification):
     letter = LetterDVLATemplate(t,
                                 sample_letter_notification.personalisation,
                                 12345)
-    assert str(letter) == "140|001|001||201703230012345|23032017||||||||||||A1|A2|A3|A4|A5|A6||A_POST||||||||Template subject|Dear Sir/Madam, Hello. Yours Truly, The Government.<cr><cr>"  # noqa
+    assert str(letter) == "140|500|001||201703230012345|23032017||||||||||||A1|A2|A3|A4|A5|A6||A_POST||||||||Template subject|Dear Sir/Madam, Hello. Yours Truly, The Government.<cr><cr>"  # noqa