diff --git a/README.md b/README.md
index 2b81c029..df106fa8 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [![Gem](https://img.shields.io/gem/dt/govuk-components?logo=rubygems)](https://rubygems.org/gems/govuk-components)
 [![Test coverage](https://api.codeclimate.com/v1/badges/cbcbc140f300b920d833/test_coverage)](https://codeclimate.com/github/x-govuk/govuk-components/test_coverage)
 [![Licence](https://img.shields.io/github/license/x-govuk/govuk-components)](https://github.com/x-govuk/govuk-components/blob/main/LICENSE.txt)
-[![GOV.UK Design System version](https://img.shields.io/badge/GOV.UK%20Design%20System-5.4.1-brightgreen)](https://design-system.service.gov.uk)
+[![GOV.UK Design System version](https://img.shields.io/badge/GOV.UK%20Design%20System-5.5.0-brightgreen)](https://design-system.service.gov.uk)
 [![ViewComponent](https://img.shields.io/badge/ViewComponent-3.3.0-brightgreen)](https://viewcomponent.org/)
 [![Rails](https://img.shields.io/badge/Rails-7.0.8%20%E2%95%B1%207.1.3-E16D6D)](https://weblog.rubyonrails.org/releases/)
 [![Ruby](https://img.shields.io/badge/Ruby-3.1.6%20%20%E2%95%B1%203.2.4%20%20%E2%95%B1%203.3.4-E16D6D)](https://www.ruby-lang.org/en/downloads/)
diff --git a/guide/content/introduction/supported-versions.slim b/guide/content/introduction/supported-versions.slim
index 7521e10d..78c19611 100644
--- a/guide/content/introduction/supported-versions.slim
+++ b/guide/content/introduction/supported-versions.slim
@@ -23,7 +23,7 @@ table.govuk-table.app-table--constrained
       th.govuk-table__header scope="row"
         | GOV.UK Design System
       td.govuk-table__cell.govuk-table__cell--numeric
-        | 5.4.1
+        | 5.5.0
       td.govuk-table__cell.govuk-table__cell--numeric
         | 3.14.0
     tr.govuk-table__row
diff --git a/guide/package-lock.json b/guide/package-lock.json
index 3ebeb960..f646ed92 100644
--- a/guide/package-lock.json
+++ b/guide/package-lock.json
@@ -11,7 +11,7 @@
       "license": "ISC",
       "dependencies": {
         "@x-govuk/govuk-prototype-components": "^3.0.6",
-        "govuk-frontend": "5.4.1",
+        "govuk-frontend": "5.5.0",
         "sass": "^1.77.8"
       }
     },
@@ -1652,9 +1652,9 @@
       }
     },
     "node_modules/govuk-frontend": {
-      "version": "5.4.1",
-      "resolved": "https://registry.npmjs.org/govuk-frontend/-/govuk-frontend-5.4.1.tgz",
-      "integrity": "sha512-Gmd8LV++TRh9OF6tA+9KQTpwvlsLcri7qRjViz9ji4YuwZvX+c9TD7tyE+dnJcqsQsJfhr9Fp38m3Hu3H7EIcQ==",
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/govuk-frontend/-/govuk-frontend-5.5.0.tgz",
+      "integrity": "sha512-lNSHCOzgk6LfgelcdtJxTLK1BX/cpjCUyEB3LnzliD9o9YQckNMsbj5+jSOs2RFy6XBJ/DJqxj2TKfjBCuzpyA==",
       "engines": {
         "node": ">= 4.2.0"
       }
diff --git a/guide/package.json b/guide/package.json
index 20609a0c..dda95a67 100644
--- a/guide/package.json
+++ b/guide/package.json
@@ -14,7 +14,7 @@
   "license": "ISC",
   "dependencies": {
     "@x-govuk/govuk-prototype-components": "^3.0.6",
-    "govuk-frontend": "5.4.1",
+    "govuk-frontend": "5.5.0",
     "sass": "^1.77.8"
   }
 }