diff --git a/app/assets/stylesheets/modules/_page-contents.scss b/app/assets/stylesheets/modules/_page-contents.scss
index c36404896..e3f3411d1 100644
--- a/app/assets/stylesheets/modules/_page-contents.scss
+++ b/app/assets/stylesheets/modules/_page-contents.scss
@@ -3,7 +3,7 @@
     margin-left: govuk-spacing(0);
     padding-right: govuk-spacing(3);
 
-    &:before {
+    &::before {
       content: "– ";
       display: inline-block;
       padding-right: govuk-spacing(1);
diff --git a/app/assets/stylesheets/views/_worldwide-organisation.scss b/app/assets/stylesheets/views/_worldwide-organisation.scss
index 25a1d34a6..932deedc6 100644
--- a/app/assets/stylesheets/views/_worldwide-organisation.scss
+++ b/app/assets/stylesheets/views/_worldwide-organisation.scss
@@ -65,12 +65,12 @@
   }
 
   li {
-    @media (min-width: 1px) { // target modern browsers
+    @media (min-width: 1px) { // stylelint-disable-line media-feature-range-notation
       list-style: none;
       padding-left: $govuk-gutter-half;
       @include govuk-responsive-padding(1, "top");
 
-      &:before {
+      &:before { // stylelint-disable-line selector-pseudo-element-colon-notation
         content: "-";
         position: relative;
         float: left;
diff --git a/package.json b/package.json
index 9cc0e2c70..4af5cb557 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "jasmine-core": "^5.1.0",
     "standardx": "^7.0.0",
     "stylelint": "^15.10.3",
-    "stylelint-config-gds": "^0.3.0"
+    "stylelint-config-gds": "^1.0.0"
   },
   "resolutions": {
     "stylelint/strip-ansi": "6.0.1",
diff --git a/yarn.lock b/yarn.lock
index eb37cccaf..fa9e2b462 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1518,7 +1518,7 @@ __metadata:
     jasmine-core: ^5.1.0
     standardx: ^7.0.0
     stylelint: ^15.10.3
-    stylelint-config-gds: ^0.3.0
+    stylelint-config-gds: ^1.0.0
   languageName: unknown
   linkType: soft
 
@@ -2097,7 +2097,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"lodash@npm:^4.17.14, lodash@npm:^4.17.19, lodash@npm:^4.17.21":
+"lodash@npm:^4.17.14, lodash@npm:^4.17.19":
   version: 4.17.21
   resolution: "lodash@npm:4.17.21"
   checksum: eb835a2e51d381e561e508ce932ea50a8e5a68f4ebdd771ea240d3048244a8d13658acbd502cd4829768c56f2e16bdd4340b9ea141297d472517b83868e677f7
@@ -2760,12 +2760,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss-scss@npm:^4.0.2":
-  version: 4.0.4
-  resolution: "postcss-scss@npm:4.0.4"
+"postcss-scss@npm:^4.0.6":
+  version: 4.0.7
+  resolution: "postcss-scss@npm:4.0.7"
   peerDependencies:
-    postcss: ^8.3.3
-  checksum: b4f240dd5eeb0c21738b673d9caf9a06b9a6db665a5b1c815ee4ca10c4c74a67c54f11cd5a4970dea98475cbb9e6d846e05dd3e48924189c2ecbf1f50cd44aa4
+    postcss: ^8.4.19
+  checksum: 579aa6807bf4934dd9bd3f8a257736c1121e189f2aa23853512e2a1be1005bac0136020d08e626998bcd3537080a1403f7a03a8cae277f3e0e314eb3c779db9c
   languageName: node
   linkType: hard
 
@@ -2779,17 +2779,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss-selector-parser@npm:^6.0.6":
-  version: 6.0.11
-  resolution: "postcss-selector-parser@npm:6.0.11"
-  dependencies:
-    cssesc: ^3.0.0
-    util-deprecate: ^1.0.2
-  checksum: 0b01aa9c2d2c8dbeb51e9b204796b678284be9823abc8d6d40a8b16d4149514e922c264a8ed4deb4d6dbced564b9be390f5942c058582d8656351516d6c49cde
-  languageName: node
-  linkType: hard
-
-"postcss-value-parser@npm:^4.1.0, postcss-value-parser@npm:^4.2.0":
+"postcss-value-parser@npm:^4.2.0":
   version: 4.2.0
   resolution: "postcss-value-parser@npm:4.2.0"
   checksum: 819ffab0c9d51cf0acbabf8996dffbfafbafa57afc0e4c98db88b67f2094cb44488758f06e5da95d7036f19556a4a732525e84289a425f4f6fd8e412a9d7442f
@@ -3474,83 +3464,102 @@ __metadata:
   languageName: node
   linkType: hard
 
-"stylelint-config-gds@npm:^0.3.0":
-  version: 0.3.0
-  resolution: "stylelint-config-gds@npm:0.3.0"
+"stylelint-config-gds@npm:^1.0.0":
+  version: 1.0.0
+  resolution: "stylelint-config-gds@npm:1.0.0"
   dependencies:
-    stylelint-config-standard: ^29.0.0
-    stylelint-config-standard-scss: ^6.1.0
+    stylelint-config-standard: ^34.0.0
+    stylelint-config-standard-scss: ^10.0.0
   peerDependencies:
-    stylelint: ^14.14.0
-  checksum: 4e416ce75bb8b883bcb58e2b5122ec68f1b4516abde53838ee88a8f12bcf8febe952286d6cdd137b199554bedf206647a16363ec1b6bea5e5e680db9bceeb263
+    stylelint: ^15.10.2
+  checksum: ef38e234239a06ba685d359a7974db191c01e34809874e836a52a93ecc1168911744edb05e6cd95491f5a4b73f130e226d7a1b32b96fd55943f1d2e399d88926
   languageName: node
   linkType: hard
 
-"stylelint-config-recommended-scss@npm:^8.0.0":
-  version: 8.0.0
-  resolution: "stylelint-config-recommended-scss@npm:8.0.0"
+"stylelint-config-recommended-scss@npm:^12.0.0":
+  version: 12.0.0
+  resolution: "stylelint-config-recommended-scss@npm:12.0.0"
   dependencies:
-    postcss-scss: ^4.0.2
-    stylelint-config-recommended: ^9.0.0
-    stylelint-scss: ^4.0.0
+    postcss-scss: ^4.0.6
+    stylelint-config-recommended: ^12.0.0
+    stylelint-scss: ^5.0.0
   peerDependencies:
     postcss: ^8.3.3
-    stylelint: ^14.10.0
+    stylelint: ^15.5.0
   peerDependenciesMeta:
     postcss:
       optional: true
-  checksum: 9680c6709239229fbf988529b7fd2cb751feca29cecbcf1054ce136807c031e2e089b94aa4d193fc2dc60410774145e6800210ebb5f72af9c553c4fc4a26a0cd
+  checksum: 9bffa840a75c51b6bd7024ac8dbfd027983d57b86e9aad662c3023242deca433b9d7ccbfd9e909f7295081d55f7c0a3755a18e0d8a558997d4d37b8dc17ffc78
   languageName: node
   linkType: hard
 
-"stylelint-config-recommended@npm:^9.0.0":
-  version: 9.0.0
-  resolution: "stylelint-config-recommended@npm:9.0.0"
+"stylelint-config-recommended@npm:^12.0.0":
+  version: 12.0.0
+  resolution: "stylelint-config-recommended@npm:12.0.0"
   peerDependencies:
-    stylelint: ^14.10.0
-  checksum: 6d94582cb6ef0ba7d0181f0ff500fb12092e465915730d0a7f6b6e8d16e8c920658f18bb2c670115cd177f5d3b481609ff3a91bcee083d546ae31d94fdc03261
+    stylelint: ^15.5.0
+  checksum: d1de0fa2673c8aa4e50259eb7320cc17e7d09d13a176afea943b3227befcaaaf4e78b546ec076ace1e031ff526c81ea5dc6efa98dd7dc77c582b7352a128d37c
   languageName: node
   linkType: hard
 
-"stylelint-config-standard-scss@npm:^6.1.0":
-  version: 6.1.0
-  resolution: "stylelint-config-standard-scss@npm:6.1.0"
+"stylelint-config-recommended@npm:^13.0.0":
+  version: 13.0.0
+  resolution: "stylelint-config-recommended@npm:13.0.0"
+  peerDependencies:
+    stylelint: ^15.10.0
+  checksum: a56eb6d1a7c7f3a7a172b54bc34218859ba22a5a06816fb4d0964f66cb83cf372062f2c97830e994ad68243548e15fc49abf28887c3261ab1b471b3aa69f8e82
+  languageName: node
+  linkType: hard
+
+"stylelint-config-standard-scss@npm:^10.0.0":
+  version: 10.0.0
+  resolution: "stylelint-config-standard-scss@npm:10.0.0"
   dependencies:
-    stylelint-config-recommended-scss: ^8.0.0
-    stylelint-config-standard: ^29.0.0
+    stylelint-config-recommended-scss: ^12.0.0
+    stylelint-config-standard: ^33.0.0
   peerDependencies:
     postcss: ^8.3.3
-    stylelint: ^14.14.0
+    stylelint: ^15.5.0
   peerDependenciesMeta:
     postcss:
       optional: true
-  checksum: eac8cc4e5f1b4ec8bba6a7bd84fe1010765f46357483bbe63f74c1ffdb01a2dd650d3751072b35869933facaacbf4adb0dcd7f141d01c5adbf72eaf720d54653
+  checksum: 14f8ed7d27edb869e72d44e4872f79e1164625ed6de5c90b5cdd9b67383facb30c260eaed50b57428e56556fae27947ab17b9446577a232e013ba7af8ee9d25c
   languageName: node
   linkType: hard
 
-"stylelint-config-standard@npm:^29.0.0":
-  version: 29.0.0
-  resolution: "stylelint-config-standard@npm:29.0.0"
+"stylelint-config-standard@npm:^33.0.0":
+  version: 33.0.0
+  resolution: "stylelint-config-standard@npm:33.0.0"
   dependencies:
-    stylelint-config-recommended: ^9.0.0
+    stylelint-config-recommended: ^12.0.0
   peerDependencies:
-    stylelint: ^14.14.0
-  checksum: 9540e5153383e5aa477d36b7a191b8768cb584d91de4382926be9c0c12863ca9235d45b87d663b27aef11610c9d6c6666536f86cc843eb36e4fdada0b4749376
+    stylelint: ^15.5.0
+  checksum: c901e52901f6eb72285a869b04ed55eddfb94b794d2599eee4cc9d56365c874c2276563d26848d29c3665ca7de361bf8abb9f6f7d80073f16013afff60938bad
   languageName: node
   linkType: hard
 
-"stylelint-scss@npm:^4.0.0":
-  version: 4.2.0
-  resolution: "stylelint-scss@npm:4.2.0"
+"stylelint-config-standard@npm:^34.0.0":
+  version: 34.0.0
+  resolution: "stylelint-config-standard@npm:34.0.0"
+  dependencies:
+    stylelint-config-recommended: ^13.0.0
+  peerDependencies:
+    stylelint: ^15.10.0
+  checksum: 536249800c04b48a9c354067765f042713982e8222be17bb897a27d26546e50adfb87e6f1e4541807d720de3554345da99ab470e13e8d7ab0ab326c73ae3df61
+  languageName: node
+  linkType: hard
+
+"stylelint-scss@npm:^5.0.0":
+  version: 5.1.0
+  resolution: "stylelint-scss@npm:5.1.0"
   dependencies:
-    lodash: ^4.17.21
     postcss-media-query-parser: ^0.2.3
     postcss-resolve-nested-selector: ^0.1.1
-    postcss-selector-parser: ^6.0.6
-    postcss-value-parser: ^4.1.0
+    postcss-selector-parser: ^6.0.13
+    postcss-value-parser: ^4.2.0
   peerDependencies:
-    stylelint: ^14.5.1
-  checksum: 1fb9e850fc7301c3481f7df193d9dda520a0d54a56284ffda2de5766432aebd4205daa5c3002e784548ba26d5d1dee402c162bbb46beb6377a40d75abc409a3d
+    stylelint: ^14.5.1 || ^15.0.0
+  checksum: 9ddcb78cef194ff084890a96bcbb4ad056e5a9d795bf4d62f1244be89e1bdf8ff534b45a5fa77ca1a506ad5cd508f96749d77ff41df9d8846d2a10bd70ec96ca
   languageName: node
   linkType: hard