diff --git a/manifest-production.yml b/manifest-production.yml
index 6f1c79df1..a89767584 100644
--- a/manifest-production.yml
+++ b/manifest-production.yml
@@ -6,4 +6,4 @@ routes:
   - route: notify-admin-production.cloudapps.digital
   - route: admin-paas.notifications.service.gov.uk
 instances: 2
-memory: 2G
+memory: 1G
diff --git a/manifest-staging.yml b/manifest-staging.yml
index 2de6a921e..76d5c9886 100644
--- a/manifest-staging.yml
+++ b/manifest-staging.yml
@@ -6,4 +6,4 @@ routes:
   - route: notify-admin-staging.cloudapps.digital
   - route: admin-paas.staging-notify.works
 instances: 2
-memory: 2G
+memory: 1G