diff --git a/modules/assets/main.tf b/modules/assets/main.tf
index 15d6db9..9f99ea7 100644
--- a/modules/assets/main.tf
+++ b/modules/assets/main.tf
@@ -97,7 +97,7 @@ resource "fastly_service_vcl" "service" {
   rate_limiter {
     name = "rate_limiter_assets_${local.template_values["environment"]}"
 
-    rps_limit            = 500
+    rps_limit            = 100
     window_size          = 10
     penalty_box_duration = 5
 
diff --git a/modules/bouncer/main.tf b/modules/bouncer/main.tf
index b034300..4738c8c 100644
--- a/modules/bouncer/main.tf
+++ b/modules/bouncer/main.tf
@@ -35,7 +35,7 @@ resource "fastly_service_vcl" "service" {
   rate_limiter {
     name = "rate_limiter_bouncer"
 
-    rps_limit            = 500
+    rps_limit            = 100
     window_size          = 10
     penalty_box_duration = 5
 
diff --git a/modules/datagovuk/main.tf b/modules/datagovuk/main.tf
index 42b85ca..873231f 100644
--- a/modules/datagovuk/main.tf
+++ b/modules/datagovuk/main.tf
@@ -114,7 +114,7 @@ resource "fastly_service_vcl" "service" {
   rate_limiter {
     name = "rate_limiter_dgu_${local.template_values["environment"]}"
 
-    rps_limit            = 500
+    rps_limit            = 100
     window_size          = 10
     penalty_box_duration = 5
 
diff --git a/modules/www/main.tf b/modules/www/main.tf
index 67d8473..cabeb56 100644
--- a/modules/www/main.tf
+++ b/modules/www/main.tf
@@ -115,7 +115,7 @@ resource "fastly_service_vcl" "service" {
   rate_limiter {
     name = "rate_limiter_www_${local.template_values["environment"]}"
 
-    rps_limit            = 500
+    rps_limit            = 100
     window_size          = 10
     penalty_box_duration = 5