diff --git a/package.json b/package.json
index 5bdaea53b3..ebcebe7cdc 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "esbuild": "^0.19.11",
     "govuk-country-and-territory-autocomplete": "^1.0.2",
     "govuk-frontend": "^4.7.0",
-    "sass": "^1.69.7"
+    "sass": "^1.70.0"
   },
   "scripts": {
     "build": "esbuild app/javascript/*.* --bundle --sourcemap --target=es6 --outdir=app/assets/builds",
diff --git a/yarn.lock b/yarn.lock
index cf194bba68..e08fa68046 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -326,10 +326,10 @@ readdirp@~3.6.0:
   dependencies:
     picomatch "^2.2.1"
 
-sass@^1.69.7:
-  version "1.69.7"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.69.7.tgz#6e7e1c8f51e8162faec3e9619babc7da780af3b7"
-  integrity sha512-rzj2soDeZ8wtE2egyLXgOOHQvaC2iosZrkF6v3EUG+tBwEvhqUCzm0VP3k9gHF9LXbSrRhT5SksoI56Iw8NPnQ==
+sass@^1.70.0:
+  version "1.70.0"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.70.0.tgz#761197419d97b5358cb25f9dd38c176a8a270a75"
+  integrity sha512-uUxNQ3zAHeAx5nRFskBnrWzDUJrrvpCPD5FNAoRvTi0WwremlheES3tg+56PaVtCs5QDRX5CBLxxKMDJMEa1WQ==
   dependencies:
     chokidar ">=3.0.0 <4.0.0"
     immutable "^4.0.0"