diff --git a/package-lock.json b/package-lock.json
index 29af21e661..05e019e276 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13380,6 +13380,7 @@
         "node_modules/nhsuk-frontend": {
             "version": "9.6.4",
             "license": "MIT",
+            "peer": true,
             "workspaces": [
                 "."
             ],
@@ -16926,7 +16927,7 @@
                 "axios": "^1.13.6",
                 "date-fns": "^4.1.0",
                 "identity-obj-proxy": "^3.0.0",
-                "nhsuk-frontend": "9.6.4",
+                "nhsuk-frontend": "^10.4.1",
                 "nhsuk-react-components": "^5.0.0",
                 "nhsuk-react-components-extensions": "^2.3.0-beta",
                 "pino": "^10.3.1",
@@ -16953,6 +16954,39 @@
                 "vite": "^7.3.1"
             }
         },
+        "packages/cpt-ui/node_modules/nhsuk-frontend": {
+            "version": "10.4.1",
+            "resolved": "https://registry.npmjs.org/nhsuk-frontend/-/nhsuk-frontend-10.4.1.tgz",
+            "integrity": "sha512-kgqfkrQpkuWmxeE9QA9gP7pvZlqm5s4JOEN6N3v+ydDHHbNe2KVCjOEC2SBPmZjUVarSUCjBsebs4shucqb0tw==",
+            "license": "MIT",
+            "engines": {
+                "node": "^20.9.0 || ^22.11.0 || >= 24.11.0"
+            },
+            "peerDependencies": {
+                "@prettier/sync": "^0.6.0",
+                "highlight.js": "^11.0.0",
+                "nunjucks": "^3.0.0",
+                "outdent": "^0.8.0",
+                "slug": "^9.0.0 || ^11.0.0"
+            },
+            "peerDependenciesMeta": {
+                "@prettier/sync": {
+                    "optional": true
+                },
+                "highlight.js": {
+                    "optional": true
+                },
+                "nunjucks": {
+                    "optional": true
+                },
+                "outdent": {
+                    "optional": true
+                },
+                "slug": {
+                    "optional": true
+                }
+            }
+        },
         "packages/cpt-ui/node_modules/sass": {
             "version": "1.98.0",
             "resolved": "https://registry.npmjs.org/sass/-/sass-1.98.0.tgz",
diff --git a/packages/cpt-ui/package.json b/packages/cpt-ui/package.json
index 00b3f51cc3..3745792f00 100644
--- a/packages/cpt-ui/package.json
+++ b/packages/cpt-ui/package.json
@@ -19,7 +19,7 @@
     "axios": "^1.13.6",
     "date-fns": "^4.1.0",
     "identity-obj-proxy": "^3.0.0",
-    "nhsuk-frontend": "9.6.4",
+    "nhsuk-frontend": "10.4.1",
     "nhsuk-react-components": "^5.0.0",
     "nhsuk-react-components-extensions": "^2.3.0-beta",
     "pino": "^10.3.1",