diff --git a/package.json b/package.json
index 3e267e9f6..409eba910 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "govuk-frontend": "^5.8.0",
     "jquery": "^3.7.1",
     "js-cookie": "^3.0.5",
-    "rollup": "^4.30.1",
+    "rollup": "^4.31.0",
     "sass": "^1.83.1",
     "tslib": "^2.8.1",
     "typescript": "^5.7.3"
diff --git a/yarn.lock b/yarn.lock
index 0f9a278d7..b5b7b2e7d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -427,135 +427,135 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@rollup/rollup-android-arm-eabi@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-android-arm-eabi@npm:4.30.1"
+"@rollup/rollup-android-arm-eabi@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-android-arm-eabi@npm:4.31.0"
   conditions: os=android & cpu=arm
   languageName: node
   linkType: hard
 
-"@rollup/rollup-android-arm64@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-android-arm64@npm:4.30.1"
+"@rollup/rollup-android-arm64@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-android-arm64@npm:4.31.0"
   conditions: os=android & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-darwin-arm64@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-darwin-arm64@npm:4.30.1"
+"@rollup/rollup-darwin-arm64@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-darwin-arm64@npm:4.31.0"
   conditions: os=darwin & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-darwin-x64@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-darwin-x64@npm:4.30.1"
+"@rollup/rollup-darwin-x64@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-darwin-x64@npm:4.31.0"
   conditions: os=darwin & cpu=x64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-freebsd-arm64@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-freebsd-arm64@npm:4.30.1"
+"@rollup/rollup-freebsd-arm64@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-freebsd-arm64@npm:4.31.0"
   conditions: os=freebsd & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-freebsd-x64@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-freebsd-x64@npm:4.30.1"
+"@rollup/rollup-freebsd-x64@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-freebsd-x64@npm:4.31.0"
   conditions: os=freebsd & cpu=x64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-arm-gnueabihf@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-arm-gnueabihf@npm:4.30.1"
+"@rollup/rollup-linux-arm-gnueabihf@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-arm-gnueabihf@npm:4.31.0"
   conditions: os=linux & cpu=arm & libc=glibc
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-arm-musleabihf@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-arm-musleabihf@npm:4.30.1"
+"@rollup/rollup-linux-arm-musleabihf@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-arm-musleabihf@npm:4.31.0"
   conditions: os=linux & cpu=arm & libc=musl
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-arm64-gnu@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-arm64-gnu@npm:4.30.1"
+"@rollup/rollup-linux-arm64-gnu@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-arm64-gnu@npm:4.31.0"
   conditions: os=linux & cpu=arm64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-arm64-musl@npm:4.30.1":
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-  resolution: "@rollup/rollup-linux-arm64-musl@npm:4.30.1"
+"@rollup/rollup-linux-arm64-musl@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-arm64-musl@npm:4.31.0"
   conditions: os=linux & cpu=arm64 & libc=musl
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-loongarch64-gnu@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-loongarch64-gnu@npm:4.30.1"
+"@rollup/rollup-linux-loongarch64-gnu@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-loongarch64-gnu@npm:4.31.0"
   conditions: os=linux & cpu=loong64 & libc=glibc
   languageName: node
   linkType: hard
 
-"@rollup/rollup-linux-powerpc64le-gnu@npm:4.30.1":
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-  resolution: "@rollup/rollup-linux-powerpc64le-gnu@npm:4.30.1"
+"@rollup/rollup-linux-powerpc64le-gnu@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-powerpc64le-gnu@npm:4.31.0"
   conditions: os=linux & cpu=ppc64 & libc=glibc
   languageName: node
   linkType: hard
 
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-  resolution: "@rollup/rollup-linux-riscv64-gnu@npm:4.30.1"
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+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-riscv64-gnu@npm:4.31.0"
   conditions: os=linux & cpu=riscv64 & libc=glibc
   languageName: node
   linkType: hard
 
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-  resolution: "@rollup/rollup-linux-s390x-gnu@npm:4.30.1"
+"@rollup/rollup-linux-s390x-gnu@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-s390x-gnu@npm:4.31.0"
   conditions: os=linux & cpu=s390x & libc=glibc
   languageName: node
   linkType: hard
 
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-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-x64-gnu@npm:4.30.1"
+"@rollup/rollup-linux-x64-gnu@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-x64-gnu@npm:4.31.0"
   conditions: os=linux & cpu=x64 & libc=glibc
   languageName: node
   linkType: hard
 
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-  version: 4.30.1
-  resolution: "@rollup/rollup-linux-x64-musl@npm:4.30.1"
+"@rollup/rollup-linux-x64-musl@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-linux-x64-musl@npm:4.31.0"
   conditions: os=linux & cpu=x64 & libc=musl
   languageName: node
   linkType: hard
 
-"@rollup/rollup-win32-arm64-msvc@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-win32-arm64-msvc@npm:4.30.1"
+"@rollup/rollup-win32-arm64-msvc@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-win32-arm64-msvc@npm:4.31.0"
   conditions: os=win32 & cpu=arm64
   languageName: node
   linkType: hard
 
-"@rollup/rollup-win32-ia32-msvc@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-win32-ia32-msvc@npm:4.30.1"
+"@rollup/rollup-win32-ia32-msvc@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-win32-ia32-msvc@npm:4.31.0"
   conditions: os=win32 & cpu=ia32
   languageName: node
   linkType: hard
 
-"@rollup/rollup-win32-x64-msvc@npm:4.30.1":
-  version: 4.30.1
-  resolution: "@rollup/rollup-win32-x64-msvc@npm:4.30.1"
+"@rollup/rollup-win32-x64-msvc@npm:4.31.0":
+  version: 4.31.0
+  resolution: "@rollup/rollup-win32-x64-msvc@npm:4.31.0"
   conditions: os=win32 & cpu=x64
   languageName: node
   linkType: hard
@@ -1900,7 +1900,7 @@ __metadata:
     govuk-frontend: "npm:^5.8.0"
     jquery: "npm:^3.7.1"
     js-cookie: "npm:^3.0.5"
-    rollup: "npm:^4.30.1"
+    rollup: "npm:^4.31.0"
     sass: "npm:^1.83.1"
     tslib: "npm:^2.8.1"
     typescript: "npm:^5.7.3"
@@ -2291,29 +2291,29 @@ __metadata:
   languageName: node
   linkType: hard
 
-"rollup@npm:^4.30.1":
-  version: 4.30.1
-  resolution: "rollup@npm:4.30.1"
-  dependencies:
-    "@rollup/rollup-android-arm-eabi": "npm:4.30.1"
-    "@rollup/rollup-android-arm64": "npm:4.30.1"
-    "@rollup/rollup-darwin-arm64": "npm:4.30.1"
-    "@rollup/rollup-darwin-x64": "npm:4.30.1"
-    "@rollup/rollup-freebsd-arm64": "npm:4.30.1"
-    "@rollup/rollup-freebsd-x64": "npm:4.30.1"
-    "@rollup/rollup-linux-arm-gnueabihf": "npm:4.30.1"
-    "@rollup/rollup-linux-arm-musleabihf": "npm:4.30.1"
-    "@rollup/rollup-linux-arm64-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-arm64-musl": "npm:4.30.1"
-    "@rollup/rollup-linux-loongarch64-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-powerpc64le-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-riscv64-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-s390x-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-x64-gnu": "npm:4.30.1"
-    "@rollup/rollup-linux-x64-musl": "npm:4.30.1"
-    "@rollup/rollup-win32-arm64-msvc": "npm:4.30.1"
-    "@rollup/rollup-win32-ia32-msvc": "npm:4.30.1"
-    "@rollup/rollup-win32-x64-msvc": "npm:4.30.1"
+"rollup@npm:^4.31.0":
+  version: 4.31.0
+  resolution: "rollup@npm:4.31.0"
+  dependencies:
+    "@rollup/rollup-android-arm-eabi": "npm:4.31.0"
+    "@rollup/rollup-android-arm64": "npm:4.31.0"
+    "@rollup/rollup-darwin-arm64": "npm:4.31.0"
+    "@rollup/rollup-darwin-x64": "npm:4.31.0"
+    "@rollup/rollup-freebsd-arm64": "npm:4.31.0"
+    "@rollup/rollup-freebsd-x64": "npm:4.31.0"
+    "@rollup/rollup-linux-arm-gnueabihf": "npm:4.31.0"
+    "@rollup/rollup-linux-arm-musleabihf": "npm:4.31.0"
+    "@rollup/rollup-linux-arm64-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-arm64-musl": "npm:4.31.0"
+    "@rollup/rollup-linux-loongarch64-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-powerpc64le-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-riscv64-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-s390x-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-x64-gnu": "npm:4.31.0"
+    "@rollup/rollup-linux-x64-musl": "npm:4.31.0"
+    "@rollup/rollup-win32-arm64-msvc": "npm:4.31.0"
+    "@rollup/rollup-win32-ia32-msvc": "npm:4.31.0"
+    "@rollup/rollup-win32-x64-msvc": "npm:4.31.0"
     "@types/estree": "npm:1.0.6"
     fsevents: "npm:~2.3.2"
   dependenciesMeta:
@@ -2359,7 +2359,7 @@ __metadata:
       optional: true
   bin:
     rollup: dist/bin/rollup
-  checksum: 10c0/a318c57e2ca9741e1503bcd75483949c6e83edd72234a468010a3098a34248f523e44f7ad4fde90dc5c2da56abc1b78ac42a9329e1dbd708682728adbd8df7cc
+  checksum: 10c0/0d6da45098af14c678e78be887fefefbf5a97fef6277c5a1c24ca722537bb3a02e695c6fcad8880218d8fbef8a7a17d865786afd99bb6e70409fad73844ca8cf
   languageName: node
   linkType: hard