diff --git a/requirements-app.txt b/requirements-app.txt
index d656a6e2a..085306c17 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -27,6 +27,6 @@ awscli==1.15.82
 awscli-cwlogs>=1.4,<1.5
 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
 
 # if you want to update pycurl please do so in makefile
diff --git a/requirements.txt b/requirements.txt
index 2952cac2a..89d555659 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ awscli==1.15.82
 awscli-cwlogs>=1.4,<1.5
 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
 
 # if you want to update pycurl please do so in makefile