diff --git a/requirements-app.txt b/requirements-app.txt
index 180dde244..5bc1ff173 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -32,5 +32,5 @@ awscli-cwlogs>=1.4,<1.5
 git+https://github.com/alphagov/notifications-utils.git@40.9.0#egg=notifications-utils==40.9.0
 
 # gds-metrics requires prometheseus 0.2.0, override that requirement as 0.7.1 brings significant performance gains
-prometheus-client==0.7.1
+prometheus-client==0.8.0
 gds-metrics==0.2.2