diff --git a/README.md b/README.md
index d8156ec4..2b81c029 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-5.4.0-brightgreen)](https://design-system.service.gov.uk)
+[![GOV.UK Design System version](https://img.shields.io/badge/GOV.UK%20Design%20System-5.4.1-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 0a7f3997..7521e10d 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
-        | 5.4.0
+        | 5.4.1
       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 0f80915f..3ebeb960 100644
--- a/guide/package-lock.json
+++ b/guide/package-lock.json
@@ -10,9 +10,9 @@
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
-        "@x-govuk/govuk-prototype-components": "^3.0.0",
-        "govuk-frontend": "5.4.0",
-        "sass": "^1.52.1"
+        "@x-govuk/govuk-prototype-components": "^3.0.6",
+        "govuk-frontend": "5.4.1",
+        "sass": "^1.77.8"
       }
     },
     "node_modules/@nodelib/fs.scandir": {
@@ -105,11 +105,11 @@
       "optional": true
     },
     "node_modules/@x-govuk/govuk-prototype-components": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/@x-govuk/govuk-prototype-components/-/govuk-prototype-components-3.0.1.tgz",
-      "integrity": "sha512-sbMG3RJi5r1eRPK5cOerXjhz1dq5kwH771JoGziIcFZwpVtPIYDAHrCCoH62AVCZAhzuWF2eSRrEo9zghX3sJw==",
+      "version": "3.0.6",
+      "resolved": "https://registry.npmjs.org/@x-govuk/govuk-prototype-components/-/govuk-prototype-components-3.0.6.tgz",
+      "integrity": "sha512-5HsOl5QdDZs/3zMWs7UzB0D+kEm2dczdWBfCeCW0fdT960ysbycnhUfJQ82SOU5TSJj36GrEgxSgBz+TCAL+1Q==",
       "dependencies": {
-        "accessible-autocomplete": "^2.0.4",
+        "accessible-autocomplete": "^3.0.0",
         "eventslibjs": "^1.2.0"
       },
       "engines": {
@@ -148,11 +148,16 @@
       }
     },
     "node_modules/accessible-autocomplete": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/accessible-autocomplete/-/accessible-autocomplete-2.0.4.tgz",
-      "integrity": "sha512-2p0txrSpvs5wXFUeQJHMheDPTZVSEmiUHWlEPb7vJnv2Dd1xPfoLnBQQMfNbTSit2pL/9sSQYESuD2Yyohd4Yw==",
-      "dependencies": {
-        "preact": "^8.3.1"
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/accessible-autocomplete/-/accessible-autocomplete-3.0.0.tgz",
+      "integrity": "sha512-Kpm6EX+jjD0AurWfzSP4EVLEKsLUWCazZwidjum+8FCRtSINeaPzVa3ElKVGWvSqVZN9zjeSBF8cirhYEZjW1A==",
+      "peerDependencies": {
+        "preact": "^8.0.0"
+      },
+      "peerDependenciesMeta": {
+        "preact": {
+          "optional": true
+        }
       }
     },
     "node_modules/aggregate-error": {
@@ -1647,9 +1652,9 @@
       }
     },
     "node_modules/govuk-frontend": {
-      "version": "5.4.0",
-      "resolved": "https://registry.npmjs.org/govuk-frontend/-/govuk-frontend-5.4.0.tgz",
-      "integrity": "sha512-F3YwQYrYQqIPfNxsoph6O78Ey1unCB6cy6omx8KeWY9G504lWZFBSIaiUCma1jNLw9bOUU7Ui+tXG09jjqy0Mw==",
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/govuk-frontend/-/govuk-frontend-5.4.1.tgz",
+      "integrity": "sha512-Gmd8LV++TRh9OF6tA+9KQTpwvlsLcri7qRjViz9ji4YuwZvX+c9TD7tyE+dnJcqsQsJfhr9Fp38m3Hu3H7EIcQ==",
       "engines": {
         "node": ">= 4.2.0"
       }
@@ -2567,12 +2572,6 @@
         "npm": ">=1.0.0"
       }
     },
-    "node_modules/preact": {
-      "version": "8.5.3",
-      "resolved": "https://registry.npmjs.org/preact/-/preact-8.5.3.tgz",
-      "integrity": "sha512-O3kKP+1YdgqHOFsZF2a9JVdtqD+RPzCQc3rP+Ualf7V6rmRDchZ9MJbiGTT7LuyqFKZqlHSOyO/oMFmI2lVTsw==",
-      "hasInstallScript": true
-    },
     "node_modules/process-nextick-args": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
@@ -2855,9 +2854,9 @@
       "optional": true
     },
     "node_modules/sass": {
-      "version": "1.72.0",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.72.0.tgz",
-      "integrity": "sha512-Gpczt3WA56Ly0Mn8Sl21Vj94s1axi9hDIzDFn9Ph9x3C3p4nNyvsqJoQyVXKou6cBlfFWEgRW4rT8Tb4i3XnVA==",
+      "version": "1.77.8",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.77.8.tgz",
+      "integrity": "sha512-4UHg6prsrycW20fqLGPShtEvo/WyHRVRHwOP4DzkUrObWoWI05QBSfzU71TVB7PFaL104TwNaHpjlWXAZbQiNQ==",
       "dependencies": {
         "chokidar": ">=3.0.0 <4.0.0",
         "immutable": "^4.0.0",
diff --git a/guide/package.json b/guide/package.json
index 5c87e723..20609a0c 100644
--- a/guide/package.json
+++ b/guide/package.json
@@ -13,8 +13,8 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@x-govuk/govuk-prototype-components": "^3.0.0",
-    "govuk-frontend": "5.4.0",
-    "sass": "^1.52.1"
+    "@x-govuk/govuk-prototype-components": "^3.0.6",
+    "govuk-frontend": "5.4.1",
+    "sass": "^1.77.8"
   }
 }