diff --git a/requirements.txt b/requirements.txt
index 30e873616..f8bab4d9a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,4 +27,4 @@ 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@17.5.6#egg=notifications-utils==17.5.6
+git+https://github.com/alphagov/notifications-utils.git@17.5.7#egg=notifications-utils==17.5.7