diff --git a/package-lock.json b/package-lock.json
index 98203c4..d9352f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@x-govuk/govuk-eleventy-plugin": "^6.2.5",
         "http-server": "^14.1.1",
         "rimraf": "^5.0.5",
-        "sass": "^1.77.6"
+        "sass": "^1.79.3"
       },
       "devDependencies": {
         "standard": "^17.1.0",
@@ -7918,11 +7918,11 @@
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     },
     "node_modules/sass": {
-      "version": "1.77.6",
-      "resolved": "https://registry.npmjs.org/sass/-/sass-1.77.6.tgz",
-      "integrity": "sha512-ByXE1oLD79GVq9Ht1PeHWCPMPB8XHpBuz1r85oByKHjZY6qV6rWnQovQzXJXuQ/XyE1Oj3iPk3lo28uzaRA2/Q==",
+      "version": "1.79.3",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.79.3.tgz",
+      "integrity": "sha512-m7dZxh0W9EZ3cw50Me5GOuYm/tVAJAn91SUnohLRo9cXBixGUOdvmryN+dXpwR831bhoY3Zv7rEFt85PUwTmzA==",
       "dependencies": {
-        "chokidar": ">=3.0.0 <4.0.0",
+        "chokidar": "^4.0.0",
         "immutable": "^4.0.0",
         "source-map-js": ">=0.6.2 <2.0.0"
       },
@@ -7933,11 +7933,37 @@
         "node": ">=14.0.0"
       }
     },
+    "node_modules/sass/node_modules/chokidar": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-4.0.1.tgz",
+      "integrity": "sha512-n8enUVCED/KVRQlab1hr3MVpcVMvxtZjmEa956u+4YijlmQED223XMSYj2tLuKvr4jcCTzNNMpQDUer72MMmzA==",
+      "dependencies": {
+        "readdirp": "^4.0.1"
+      },
+      "engines": {
+        "node": ">= 14.16.0"
+      },
+      "funding": {
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/sass/node_modules/immutable": {
       "version": "4.3.6",
       "resolved": "https://registry.npmjs.org/immutable/-/immutable-4.3.6.tgz",
       "integrity": "sha512-Ju0+lEMyzMVZarkTn/gqRpdqd5dOPaz1mCZ0SH3JV6iFw81PldE/PEB1hWVEA288HPt4WXW8O7AWxB10M+03QQ=="
     },
+    "node_modules/sass/node_modules/readdirp": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.0.1.tgz",
+      "integrity": "sha512-GkMg9uOTpIWWKbSsgwb5fA4EavTR+SG/PMPoAY8hkhHfEEY0/vqljY+XHqtDf2cr2IJtoNRDbrrEpZUiZCkYRw==",
+      "engines": {
+        "node": ">= 14.16.0"
+      },
+      "funding": {
+        "type": "individual",
+        "url": "https://paulmillr.com/funding/"
+      }
+    },
     "node_modules/section-matter": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/section-matter/-/section-matter-1.0.0.tgz",
diff --git a/package.json b/package.json
index c5caa35..566953f 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@x-govuk/govuk-eleventy-plugin": "^6.2.5",
     "http-server": "^14.1.1",
     "rimraf": "^5.0.5",
-    "sass": "^1.77.6"
+    "sass": "^1.79.3"
   },
   "devDependencies": {
     "standard": "^17.1.0",