diff --git a/packages/gap-web-ui/package.json b/packages/gap-web-ui/package.json
index 0eddd6ebf..ec183f8e0 100644
--- a/packages/gap-web-ui/package.json
+++ b/packages/gap-web-ui/package.json
@@ -50,7 +50,7 @@
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-prettier": "^4.2.1",
     "govuk-frontend": "^4.2.0",
-    "postcss": "8.4.14",
+    "postcss": "8.4.31",
     "prettier": "^2.7.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
diff --git a/yarn.lock b/yarn.lock
index aaba40168..c511ee53d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11002,7 +11002,7 @@ __metadata:
     eslint-config-prettier: ^8.5.0
     eslint-plugin-prettier: ^4.2.1
     govuk-frontend: ^4.2.0
-    postcss: 8.4.14
+    postcss: 8.4.31
     prettier: ^2.7.1
     react: ^18.2.0
     react-dom: ^18.2.0