diff --git a/source/ui/package.json b/source/ui/package.json
index 5e76fe3..78ce35c 100644
--- a/source/ui/package.json
+++ b/source/ui/package.json
@@ -75,7 +75,7 @@
         "jest": "27.5.1",
         "mini-css-extract-plugin": "2.6.0",
         "nightwatch": "3.0.1",
-        "postcss": "8.4.21",
+        "postcss": "8.4.31",
         "postcss-loader": "6.2.1",
         "prettier": "2.6.1",
         "tailwindcss": "3.0.23",