diff --git a/CHANGELOG.md b/CHANGELOG.md
index a5b045b204..ef5e6322a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 13.9.1
+
 ### Fixes
 
 - [#2236: nunjucks macros validation error](https://github.com/alphagov/govuk-prototype-kit/pull/2236) - adding case for nunjucksMacros to the validator to fix bug.
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 1438e5bee9..6babb7abae 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,12 +1,12 @@
 {
   "name": "govuk-prototype-kit",
-  "version": "13.9.0",
+  "version": "13.9.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "govuk-prototype-kit",
-      "version": "13.9.0",
+      "version": "13.9.1",
       "dependencies": {
         "ansi-colors": "^4.1.3",
         "body-parser": "^1.20.1",
diff --git a/package.json b/package.json
index 27c11c13b2..af8825e30e 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": "13.9.0",
+  "version": "13.9.1",
   "engines": {
     "node": "^16.x || >= 18.x"
   },