diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50f7c3d7bb..6c7493733d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 13.9.0
+
 ### New features
 
 - [#2206: plugin validator tool](https://github.com/alphagov/govuk-prototype-kit/pull/2206) - We've created a tool to help test plugins for the Prototype Kit. It's only for internal use at the moment, but we're planning to make it public soon.
diff --git a/known-plugins.json b/known-plugins.json
index 9ff43b2c43..824161edeb 100644
--- a/known-plugins.json
+++ b/known-plugins.json
@@ -5,6 +5,7 @@
       "@govuk-prototype-kit/common-templates",
       "@govuk-prototype-kit/step-by-step",
       "@govuk-prototype-kit/task-list",
+      "home-office-kit",
       "hmrc-frontend",
       "jquery",
       "notifications-node-client"
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 8d70a50dcc..1438e5bee9 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,12 +1,12 @@
 {
   "name": "govuk-prototype-kit",
-  "version": "13.8.1",
+  "version": "13.9.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "govuk-prototype-kit",
-      "version": "13.8.1",
+      "version": "13.9.0",
       "dependencies": {
         "ansi-colors": "^4.1.3",
         "body-parser": "^1.20.1",
diff --git a/package.json b/package.json
index b6c537cb9a..27c11c13b2 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "govuk-prototype-kit",
   "description": "Rapidly create HTML prototypes of GOV.UK services",
-  "version": "13.8.1",
+  "version": "13.9.0",
   "engines": {
     "node": "^16.x || >= 18.x"
   },