diff --git a/nextjs-app-v14/package.json b/nextjs-app-v14/package.json
index 23f120d8..7097c704 100644
--- a/nextjs-app-v14/package.json
+++ b/nextjs-app-v14/package.json
@@ -19,7 +19,7 @@
     "@justeattakeaway/pie-webc": "0.6.0",
     "@lit-labs/nextjs": "0.2.0",
     "@lit/react": "1.0.6",
-    "next": "14.2.18",
+    "next": "14.2.21",
     "react": "18.3.1",
     "react-dom": "18.3.1",
     "sass": "1.81.0"
diff --git a/yarn.lock b/yarn.lock
index 708752d3..076b642c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1575,10 +1575,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@next/env@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/env@npm:14.2.18"
-  checksum: e6854639716c2d5d91f76292364b7b24f9f12dbf271a2aba8ac5749487f75531f1881af140c4632f986f7aef7997bf7a48b7562c7f9962526977206c1d3d6c1d
+"@next/env@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/env@npm:14.2.21"
+  checksum: 98c9e4c04f7560a809adcf81b10e5d3f8ad2fefd3e53e85a429a33b4a8850362358b974a607b4ea1833c369ab3d21d1256663deca919d2c178e774b161113616
   languageName: node
   linkType: hard
 
@@ -1591,65 +1591,65 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@next/swc-darwin-arm64@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-darwin-arm64@npm:14.2.18"
+"@next/swc-darwin-arm64@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-darwin-arm64@npm:14.2.21"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@next/swc-darwin-x64@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-darwin-x64@npm:14.2.18"
+"@next/swc-darwin-x64@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-darwin-x64@npm:14.2.21"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@next/swc-linux-arm64-gnu@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-linux-arm64-gnu@npm:14.2.18"
+"@next/swc-linux-arm64-gnu@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-linux-arm64-gnu@npm:14.2.21"
   conditions: os=linux & cpu=arm64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@next/swc-linux-arm64-musl@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-linux-arm64-musl@npm:14.2.18"
+"@next/swc-linux-arm64-musl@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-linux-arm64-musl@npm:14.2.21"
   conditions: os=linux & cpu=arm64 & libc=musl
   languageName: node
   linkType: hard
 
-"@next/swc-linux-x64-gnu@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-linux-x64-gnu@npm:14.2.18"
+"@next/swc-linux-x64-gnu@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-linux-x64-gnu@npm:14.2.21"
   conditions: os=linux & cpu=x64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@next/swc-linux-x64-musl@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-linux-x64-musl@npm:14.2.18"
+"@next/swc-linux-x64-musl@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-linux-x64-musl@npm:14.2.21"
   conditions: os=linux & cpu=x64 & libc=musl
   languageName: node
   linkType: hard
 
-"@next/swc-win32-arm64-msvc@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-win32-arm64-msvc@npm:14.2.18"
+"@next/swc-win32-arm64-msvc@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-win32-arm64-msvc@npm:14.2.21"
   conditions: os=win32 & cpu=arm64
   languageName: node
   linkType: hard
 
-"@next/swc-win32-ia32-msvc@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-win32-ia32-msvc@npm:14.2.18"
+"@next/swc-win32-ia32-msvc@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-win32-ia32-msvc@npm:14.2.21"
   conditions: os=win32 & cpu=ia32
   languageName: node
   linkType: hard
 
-"@next/swc-win32-x64-msvc@npm:14.2.18":
-  version: 14.2.18
-  resolution: "@next/swc-win32-x64-msvc@npm:14.2.18"
+"@next/swc-win32-x64-msvc@npm:14.2.21":
+  version: 14.2.21
+  resolution: "@next/swc-win32-x64-msvc@npm:14.2.21"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
@@ -9920,20 +9920,20 @@ __metadata:
   languageName: node
   linkType: hard
 
-"next@npm:14.2.18":
-  version: 14.2.18
-  resolution: "next@npm:14.2.18"
+"next@npm:14.2.21":
+  version: 14.2.21
+  resolution: "next@npm:14.2.21"
   dependencies:
-    "@next/env": 14.2.18
-    "@next/swc-darwin-arm64": 14.2.18
-    "@next/swc-darwin-x64": 14.2.18
-    "@next/swc-linux-arm64-gnu": 14.2.18
-    "@next/swc-linux-arm64-musl": 14.2.18
-    "@next/swc-linux-x64-gnu": 14.2.18
-    "@next/swc-linux-x64-musl": 14.2.18
-    "@next/swc-win32-arm64-msvc": 14.2.18
-    "@next/swc-win32-ia32-msvc": 14.2.18
-    "@next/swc-win32-x64-msvc": 14.2.18
+    "@next/env": 14.2.21
+    "@next/swc-darwin-arm64": 14.2.21
+    "@next/swc-darwin-x64": 14.2.21
+    "@next/swc-linux-arm64-gnu": 14.2.21
+    "@next/swc-linux-arm64-musl": 14.2.21
+    "@next/swc-linux-x64-gnu": 14.2.21
+    "@next/swc-linux-x64-musl": 14.2.21
+    "@next/swc-win32-arm64-msvc": 14.2.21
+    "@next/swc-win32-ia32-msvc": 14.2.21
+    "@next/swc-win32-x64-msvc": 14.2.21
     "@swc/helpers": 0.5.5
     busboy: 1.6.0
     caniuse-lite: ^1.0.30001579
@@ -9974,7 +9974,7 @@ __metadata:
       optional: true
   bin:
     next: dist/bin/next
-  checksum: fe3cb02bfcce09ab2c23810380e0e47b2c73afc4e9195781525c4ad3302f6ddcc477afd394aeb5aeb0bde211f50b1030a5ef604e07e24d3bfff8c1b1ae840a5a
+  checksum: ac4459fdde47e3f6f5ae64b2b58a86a94775ca25f6c36a10fc19ac5572fa10e2532b99f38eb5f917e3dfce1e0656851994577e0a0082c18bfac949397e1d9c9d
   languageName: node
   linkType: hard
 
@@ -9993,7 +9993,7 @@ __metadata:
     deepmerge: 4.3.1
     eslint: 8.57.1
     eslint-config-next: 13.5.7
-    next: 14.2.18
+    next: 14.2.21
     react: 18.3.1
     react-dom: 18.3.1
     sass: 1.81.0