diff --git a/requirements.in b/requirements.in
index b1d00acbd..fa6a8f7a6 100644
--- a/requirements.in
+++ b/requirements.in
@@ -34,5 +34,5 @@ awscli-cwlogs==1.4.6
 notifications-utils @ git+https://github.com/alphagov/notifications-utils.git@55.1.4
 
 # gds-metrics requires prometheseus 0.2.0, override that requirement as 0.7.1 brings significant performance gains
-prometheus-client==0.10.1
+prometheus-client==0.14.1
 gds-metrics==0.2.4
diff --git a/requirements.txt b/requirements.txt
index 48fe96587..806e87aad 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -154,7 +154,7 @@ packaging==21.0
     # via bleach
 phonenumbers==8.12.36
     # via notifications-utils
-prometheus-client==0.10.1
+prometheus-client==0.14.1
     # via
     #   -r requirements.in
     #   gds-metrics