diff --git a/requirements-app.txt b/requirements-app.txt
index 797cbc8c7..5c301e7ea 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -23,4 +23,4 @@ awscli-cwlogs>=1.4,<1.5
 awscli==1.15.82
 botocore<1.11.0
 
-git+https://github.com/alphagov/notifications-utils.git@30.5.2#egg=notifications-utils==30.5.2
+git+https://github.com/alphagov/notifications-utils.git@30.5.3#egg=notifications-utils==30.5.3
diff --git a/requirements.txt b/requirements.txt
index 0d0debda4..4bd2c4a44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ awscli-cwlogs>=1.4,<1.5
 awscli==1.15.82
 botocore<1.11.0
 
-git+https://github.com/alphagov/notifications-utils.git@30.5.2#egg=notifications-utils==30.5.2
+git+https://github.com/alphagov/notifications-utils.git@30.5.3#egg=notifications-utils==30.5.3
 
 ## The following requirements were added by pip freeze:
 bleach==2.1.3