diff --git a/apps/next-example/package.json b/apps/next-example/package.json
index 4f5478187..584ae402b 100644
--- a/apps/next-example/package.json
+++ b/apps/next-example/package.json
@@ -17,7 +17,7 @@
   },
   "dependencies": {
     "@not-govuk/simple-components": "workspace:^0.15.1",
-    "next": "15.0.3",
+    "next": "15.0.4",
     "react": "18.3.1",
     "react-dom": "18.3.1"
   },
diff --git a/lib/router/package.json b/lib/router/package.json
index 10aeec251..450007fe3 100644
--- a/lib/router/package.json
+++ b/lib/router/package.json
@@ -45,7 +45,7 @@
   },
   "peerDependencies": {
     "@remix-run/react": "^2.15.0",
-    "next": "^15.0.3",
+    "next": "^15.0.4",
     "react-router-dom": "^6.28.0"
   },
   "peerDependenciesMeta": {
@@ -64,7 +64,7 @@
     "@types/react": "^18.3.12",
     "jest": "29.7.0",
     "jest-environment-jsdom": "29.7.0",
-    "next": "15.0.3",
+    "next": "15.0.4",
     "ts-jest": "29.2.5",
     "typescript": "4.9.5"
   }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e041d532d..41d372afb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -253,7 +253,7 @@ importers:
       cypress: 13.16.1
       jest: 29.7.0
       jest-environment-jsdom: 29.7.0
-      next: 15.0.3
+      next: 15.0.4
       react: 18.3.1
       react-dom: 18.3.1
       sass: ^1.82.0
@@ -262,7 +262,7 @@ importers:
       typescript: ^5
     dependencies:
       '@not-govuk/simple-components': link:../../lib-govuk/simple-components
-      next: 15.0.3_x5k7zhp6hzoeki7r5zb2r4e4em
+      next: 15.0.4_x5k7zhp6hzoeki7r5zb2r4e4em
       react: 18.3.1
       react-dom: 18.3.1_react@18.3.1
     devDependencies:
@@ -2215,7 +2215,7 @@ importers:
       '@types/react': ^18.3.12
       jest: 29.7.0
       jest-environment-jsdom: 29.7.0
-      next: 15.0.3
+      next: 15.0.4
       ts-jest: 29.2.5
       typescript: 4.9.5
     dependencies:
@@ -2225,7 +2225,7 @@ importers:
       '@types/react': 18.3.12
       jest: 29.7.0
       jest-environment-jsdom: 29.7.0
-      next: 15.0.3
+      next: 15.0.4
       ts-jest: 29.2.5_67xnt3v64q2pgz6kguni4h37hu
       typescript: 4.9.5
 
@@ -6436,67 +6436,67 @@ packages:
       lodash: 4.17.21
     dev: false
 
-  /@next/env/15.0.3:
-    resolution: {integrity: sha512-t9Xy32pjNOvVn2AS+Utt6VmyrshbpfUMhIjFO60gI58deSo/KgLOp31XZ4O+kY/Is8WAGYwA5gR7kOb1eORDBA==}
+  /@next/env/15.0.4:
+    resolution: {integrity: sha512-WNRvtgnRVDD4oM8gbUcRc27IAhaL4eXQ/2ovGbgLnPGUvdyDr8UdXP4Q/IBDdAdojnD2eScryIDirv0YUCjUVw==}
 
-  /@next/swc-darwin-arm64/15.0.3:
-    resolution: {integrity: sha512-s3Q/NOorCsLYdCKvQlWU+a+GeAd3C8Rb3L1YnetsgwXzhc3UTWrtQpB/3eCjFOdGUj5QmXfRak12uocd1ZiiQw==}
+  /@next/swc-darwin-arm64/15.0.4:
+    resolution: {integrity: sha512-QecQXPD0yRHxSXWL5Ff80nD+A56sUXZG9koUsjWJwA2Z0ZgVQfuy7gd0/otjxoOovPVHR2eVEvPMHbtZP+pf9w==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [darwin]
     requiresBuild: true
     optional: true
 
-  /@next/swc-darwin-x64/15.0.3:
-    resolution: {integrity: sha512-Zxl/TwyXVZPCFSf0u2BNj5sE0F2uR6iSKxWpq4Wlk/Sv9Ob6YCKByQTkV2y6BCic+fkabp9190hyrDdPA/dNrw==}
+  /@next/swc-darwin-x64/15.0.4:
+    resolution: {integrity: sha512-pb7Bye3y1Og3PlCtnz2oO4z+/b3pH2/HSYkLbL0hbVuTGil7fPen8/3pyyLjdiTLcFJ+ymeU3bck5hd4IPFFCA==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [darwin]
     requiresBuild: true
     optional: true
 
-  /@next/swc-linux-arm64-gnu/15.0.3:
-    resolution: {integrity: sha512-T5+gg2EwpsY3OoaLxUIofmMb7ohAUlcNZW0fPQ6YAutaWJaxt1Z1h+8zdl4FRIOr5ABAAhXtBcpkZNwUcKI2fw==}
+  /@next/swc-linux-arm64-gnu/15.0.4:
+    resolution: {integrity: sha512-12oSaBFjGpB227VHzoXF3gJoK2SlVGmFJMaBJSu5rbpaoT5OjP5OuCLuR9/jnyBF1BAWMs/boa6mLMoJPRriMA==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
     requiresBuild: true
     optional: true
 
-  /@next/swc-linux-arm64-musl/15.0.3:
-    resolution: {integrity: sha512-WkAk6R60mwDjH4lG/JBpb2xHl2/0Vj0ZRu1TIzWuOYfQ9tt9NFsIinI1Epma77JVgy81F32X/AeD+B2cBu/YQA==}
+  /@next/swc-linux-arm64-musl/15.0.4:
+    resolution: {integrity: sha512-QARO88fR/a+wg+OFC3dGytJVVviiYFEyjc/Zzkjn/HevUuJ7qGUUAUYy5PGVWY1YgTzeRYz78akQrVQ8r+sMjw==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
     requiresBuild: true
     optional: true
 
-  /@next/swc-linux-x64-gnu/15.0.3:
-    resolution: {integrity: sha512-gWL/Cta1aPVqIGgDb6nxkqy06DkwJ9gAnKORdHWX1QBbSZZB+biFYPFti8aKIQL7otCE1pjyPaXpFzGeG2OS2w==}
+  /@next/swc-linux-x64-gnu/15.0.4:
+    resolution: {integrity: sha512-Z50b0gvYiUU1vLzfAMiChV8Y+6u/T2mdfpXPHraqpypP7yIT2UV9YBBhcwYkxujmCvGEcRTVWOj3EP7XW/wUnw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
     requiresBuild: true
     optional: true
 
-  /@next/swc-linux-x64-musl/15.0.3:
-    resolution: {integrity: sha512-QQEMwFd8r7C0GxQS62Zcdy6GKx999I/rTO2ubdXEe+MlZk9ZiinsrjwoiBL5/57tfyjikgh6GOU2WRQVUej3UA==}
+  /@next/swc-linux-x64-musl/15.0.4:
+    resolution: {integrity: sha512-7H9C4FAsrTAbA/ENzvFWsVytqRYhaJYKa2B3fyQcv96TkOGVMcvyS6s+sj4jZlacxxTcn7ygaMXUPkEk7b78zw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
     requiresBuild: true
     optional: true
 
-  /@next/swc-win32-arm64-msvc/15.0.3:
-    resolution: {integrity: sha512-9TEp47AAd/ms9fPNgtgnT7F3M1Hf7koIYYWCMQ9neOwjbVWJsHZxrFbI3iEDJ8rf1TDGpmHbKxXf2IFpAvheIQ==}
+  /@next/swc-win32-arm64-msvc/15.0.4:
+    resolution: {integrity: sha512-Z/v3WV5xRaeWlgJzN9r4PydWD8sXV35ywc28W63i37G2jnUgScA4OOgS8hQdiXLxE3gqfSuHTicUhr7931OXPQ==}
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [win32]
     requiresBuild: true
     optional: true
 
-  /@next/swc-win32-x64-msvc/15.0.3:
-    resolution: {integrity: sha512-VNAz+HN4OGgvZs6MOoVfnn41kBzT+M+tB+OK4cww6DNyWS6wKaDpaAm/qLeOUbnMh0oVx1+mg0uoYARF69dJyA==}
+  /@next/swc-win32-x64-msvc/15.0.4:
+    resolution: {integrity: sha512-NGLchGruagh8lQpDr98bHLyWJXOBSmkEAfK980OiNBa7vNm6PsNoPvzTfstT78WyOeMRQphEQ455rggd7Eo+Dw==}
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [win32]
@@ -19677,16 +19677,16 @@ packages:
     resolution: {integrity: sha512-CXdUiJembsNjuToQvxayPZF9Vqht7hewsvy2sOWafLvi2awflj9mOC6bHIg50orX8IJvWKY9wYQ/zB2kogPslQ==}
     dev: true
 
-  /next/15.0.3:
-    resolution: {integrity: sha512-ontCbCRKJUIoivAdGB34yCaOcPgYXr9AAkV/IwqFfWWTXEPUgLYkSkqBhIk9KK7gGmgjc64B+RdoeIDM13Irnw==}
+  /next/15.0.4:
+    resolution: {integrity: sha512-nuy8FH6M1FG0lktGotamQDCXhh5hZ19Vo0ht1AOIQWrYJLP598TIUagKtvJrfJ5AGwB/WmDqkKaKhMpVifvGPA==}
     engines: {node: ^18.18.0 || ^19.8.0 || >= 20.0.0}
     hasBin: true
     peerDependencies:
       '@opentelemetry/api': ^1.1.0
       '@playwright/test': ^1.41.2
       babel-plugin-react-compiler: '*'
-      react: ^18.2.0 || 19.0.0-rc-66855b96-20241106
-      react-dom: ^18.2.0 || 19.0.0-rc-66855b96-20241106
+      react: ^18.2.0 || 19.0.0-rc-66855b96-20241106 || ^19.0.0
+      react-dom: ^18.2.0 || 19.0.0-rc-66855b96-20241106 || ^19.0.0
       sass: ^1.3.0
     peerDependenciesMeta:
       '@opentelemetry/api':
@@ -19698,7 +19698,7 @@ packages:
       sass:
         optional: true
     dependencies:
-      '@next/env': 15.0.3
+      '@next/env': 15.0.4
       '@swc/counter': 0.1.3
       '@swc/helpers': 0.5.13
       busboy: 1.6.0
@@ -19706,30 +19706,30 @@ packages:
       postcss: 8.4.31
       styled-jsx: 5.1.6
     optionalDependencies:
-      '@next/swc-darwin-arm64': 15.0.3
-      '@next/swc-darwin-x64': 15.0.3
-      '@next/swc-linux-arm64-gnu': 15.0.3
-      '@next/swc-linux-arm64-musl': 15.0.3
-      '@next/swc-linux-x64-gnu': 15.0.3
-      '@next/swc-linux-x64-musl': 15.0.3
-      '@next/swc-win32-arm64-msvc': 15.0.3
-      '@next/swc-win32-x64-msvc': 15.0.3
+      '@next/swc-darwin-arm64': 15.0.4
+      '@next/swc-darwin-x64': 15.0.4
+      '@next/swc-linux-arm64-gnu': 15.0.4
+      '@next/swc-linux-arm64-musl': 15.0.4
+      '@next/swc-linux-x64-gnu': 15.0.4
+      '@next/swc-linux-x64-musl': 15.0.4
+      '@next/swc-win32-arm64-msvc': 15.0.4
+      '@next/swc-win32-x64-msvc': 15.0.4
       sharp: 0.33.5
     transitivePeerDependencies:
       - '@babel/core'
       - babel-plugin-macros
     dev: true
 
-  /next/15.0.3_x5k7zhp6hzoeki7r5zb2r4e4em:
-    resolution: {integrity: sha512-ontCbCRKJUIoivAdGB34yCaOcPgYXr9AAkV/IwqFfWWTXEPUgLYkSkqBhIk9KK7gGmgjc64B+RdoeIDM13Irnw==}
+  /next/15.0.4_x5k7zhp6hzoeki7r5zb2r4e4em:
+    resolution: {integrity: sha512-nuy8FH6M1FG0lktGotamQDCXhh5hZ19Vo0ht1AOIQWrYJLP598TIUagKtvJrfJ5AGwB/WmDqkKaKhMpVifvGPA==}
     engines: {node: ^18.18.0 || ^19.8.0 || >= 20.0.0}
     hasBin: true
     peerDependencies:
       '@opentelemetry/api': ^1.1.0
       '@playwright/test': ^1.41.2
       babel-plugin-react-compiler: '*'
-      react: ^18.2.0 || 19.0.0-rc-66855b96-20241106
-      react-dom: ^18.2.0 || 19.0.0-rc-66855b96-20241106
+      react: ^18.2.0 || 19.0.0-rc-66855b96-20241106 || ^19.0.0
+      react-dom: ^18.2.0 || 19.0.0-rc-66855b96-20241106 || ^19.0.0
       sass: ^1.3.0
     peerDependenciesMeta:
       '@opentelemetry/api':
@@ -19741,7 +19741,7 @@ packages:
       sass:
         optional: true
     dependencies:
-      '@next/env': 15.0.3
+      '@next/env': 15.0.4
       '@swc/counter': 0.1.3
       '@swc/helpers': 0.5.13
       busboy: 1.6.0
@@ -19752,14 +19752,14 @@ packages:
       sass: 1.82.0
       styled-jsx: 5.1.6_react@18.3.1
     optionalDependencies:
-      '@next/swc-darwin-arm64': 15.0.3
-      '@next/swc-darwin-x64': 15.0.3
-      '@next/swc-linux-arm64-gnu': 15.0.3
-      '@next/swc-linux-arm64-musl': 15.0.3
-      '@next/swc-linux-x64-gnu': 15.0.3
-      '@next/swc-linux-x64-musl': 15.0.3
-      '@next/swc-win32-arm64-msvc': 15.0.3
-      '@next/swc-win32-x64-msvc': 15.0.3
+      '@next/swc-darwin-arm64': 15.0.4
+      '@next/swc-darwin-x64': 15.0.4
+      '@next/swc-linux-arm64-gnu': 15.0.4
+      '@next/swc-linux-arm64-musl': 15.0.4
+      '@next/swc-linux-x64-gnu': 15.0.4
+      '@next/swc-linux-x64-musl': 15.0.4
+      '@next/swc-win32-arm64-msvc': 15.0.4
+      '@next/swc-win32-x64-msvc': 15.0.4
       sharp: 0.33.5
     transitivePeerDependencies:
       - '@babel/core'