diff --git a/changelog.d/5-internal/nginz-map-hash-bucket-size b/changelog.d/5-internal/nginz-map-hash-bucket-size
new file mode 100644
index 00000000000..2ad170b4ce5
--- /dev/null
+++ b/changelog.d/5-internal/nginz-map-hash-bucket-size
@@ -0,0 +1 @@
+charts/{nginz,cannon}: Increase map_hash_bucket_size for nginx to 128
\ No newline at end of file
diff --git a/charts/cannon/templates/conf/_nginx.conf.tpl b/charts/cannon/templates/conf/_nginx.conf.tpl
index 9fb06e22dc1..a402deab9b0 100644
--- a/charts/cannon/templates/conf/_nginx.conf.tpl
+++ b/charts/cannon/templates/conf/_nginx.conf.tpl
@@ -35,6 +35,7 @@ http {
   ignore_invalid_headers off;
 
   types_hash_max_size 2048;
+  map_hash_bucket_size 128;
 
   server_names_hash_bucket_size 64;
   server_name_in_redirect off;
diff --git a/charts/nginz/templates/conf/_nginx.conf.tpl b/charts/nginz/templates/conf/_nginx.conf.tpl
index 3ef95941d07..2f2e486c35c 100644
--- a/charts/nginz/templates/conf/_nginx.conf.tpl
+++ b/charts/nginz/templates/conf/_nginx.conf.tpl
@@ -35,6 +35,7 @@ http {
   ignore_invalid_headers off;
 
   types_hash_max_size 2048;
+  map_hash_bucket_size 128;
 
   server_names_hash_bucket_size 64;
   server_name_in_redirect off;