diff --git a/package-lock.json b/package-lock.json
index a2c9ae0..e7f56c8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "del": "6.1.1",
         "got": "^11.8.6",
         "govuk-frontend": "4.7.0",
-        "govuk-prototype-kit": "13.13.3",
+        "govuk-prototype-kit": "13.13.4",
         "gray-matter": "^4.0.3",
         "luxon": "^3.4.3",
         "marked": "^9.0.3",
@@ -1728,9 +1728,9 @@
       }
     },
     "node_modules/govuk-prototype-kit": {
-      "version": "13.13.3",
-      "resolved": "https://registry.npmjs.org/govuk-prototype-kit/-/govuk-prototype-kit-13.13.3.tgz",
-      "integrity": "sha512-296WEGDDV/9CvKDKY7NAy9+/eOh2hZZt/t6xMNTvOgrvG45h9qOCS958z7hcPIHwXIUY3L7lS1zWAHI3zvX7hA==",
+      "version": "13.13.4",
+      "resolved": "https://registry.npmjs.org/govuk-prototype-kit/-/govuk-prototype-kit-13.13.4.tgz",
+      "integrity": "sha512-P4HfYXIAUpjWe5NIfTEYxOkg0iE9GuQBmJ0KO+KoFVkFre2yPlAoa3kQA30UjjvtT2+c+Sc70Abkx424rwaiAg==",
       "dependencies": {
         "ansi-colors": "^4.1.3",
         "body-parser": "^1.20.1",
diff --git a/package.json b/package.json
index 24f6cd3..3b83b32 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "del": "6.1.1",
     "got": "^11.8.6",
     "govuk-frontend": "4.7.0",
-    "govuk-prototype-kit": "13.13.3",
+    "govuk-prototype-kit": "13.13.4",
     "gray-matter": "^4.0.3",
     "luxon": "^3.4.3",
     "marked": "^9.0.3",