diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 048210cfd7d..9a9dceec99d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -409,8 +409,8 @@ importers:
         specifier: ^3.0.0
         version: 3.0.2
       sass-loader:
-        specifier: ^12.4.0
-        version: 12.6.0(webpack@5.98.0)
+        specifier: ^16.0.5
+        version: 16.0.5(webpack@5.98.0)
       serve:
         specifier: ^14.2.4
         version: 14.2.4
@@ -20588,17 +20588,17 @@ packages:
   /safer-buffer@2.1.2:
     resolution: {integrity: sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==}
 
-  /sass-loader@12.6.0(webpack@5.98.0):
-    resolution: {integrity: sha512-oLTaH0YCtX4cfnJZxKSLAyglED0naiYfNG1iXfU5w1LNZ+ukoA5DtyDIN5zmKVZwYNJP4KRc5Y3hkWga+7tYfA==}
-    engines: {node: '>= 12.13.0'}
+  /sass-loader@16.0.5(webpack@5.98.0):
+    resolution: {integrity: sha512-oL+CMBXrj6BZ/zOq4os+UECPL+bWqt6OAC6DWS8Ln8GZRcMDjlJ4JC3FBDuHJdYaFWIdKNIBYmtZtK2MaMkNIw==}
+    engines: {node: '>= 18.12.0'}
     peerDependencies:
-      fibers: '>= 3.1.0'
-      node-sass: ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0
+      '@rspack/core': 0.x || 1.x
+      node-sass: ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0 || ^9.0.0
       sass: ^1.3.0
       sass-embedded: '*'
       webpack: ^5.0.0
     peerDependenciesMeta:
-      fibers:
+      '@rspack/core':
         optional: true
       node-sass:
         optional: true
@@ -20606,8 +20606,9 @@ packages:
         optional: true
       sass-embedded:
         optional: true
+      webpack:
+        optional: true
     dependencies:
-      klona: 2.0.5
       neo-async: 2.6.2
       webpack: 5.98.0(@swc/core@1.11.5)(esbuild@0.25.0)
     dev: true
diff --git a/polaris-react/package.json b/polaris-react/package.json
index 0a0b1df036e..bb706d09f1e 100644
--- a/polaris-react/package.json
+++ b/polaris-react/package.json
@@ -113,7 +113,7 @@
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "rimraf": "^3.0.0",
-    "sass-loader": "^12.4.0",
+    "sass-loader": "^16.0.5",
     "serve": "^14.2.4",
     "storybook": "^8.6.4",
     "transitions-all-settled": "^0.4.0",