diff --git a/ui/package.json b/ui/package.json
index 256eb9cd70..7a2338deed 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -58,7 +58,7 @@
     "eslint-plugin-storybook": "^0.6.13",
     "gh-pages": "^6.0.0",
     "less": "^4.1.2",
-    "postcss": "^8.4.28",
+    "postcss": "^8.4.31",
     "prettier": "^3.0.1",
     "prettier-plugin-organize-imports": "^3.2.3",
     "storybook": "^7.3.0",
diff --git a/ui/yarn.lock b/ui/yarn.lock
index bfb834a654..68b6ab522e 100644
--- a/ui/yarn.lock
+++ b/ui/yarn.lock
@@ -8575,10 +8575,10 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@^8.2.14, postcss@^8.4.21, postcss@^8.4.23, postcss@^8.4.28:
-  version "8.4.29"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.29.tgz#33bc121cf3b3688d4ddef50be869b2a54185a1dd"
-  integrity sha512-cbI+jaqIeu/VGqXEarWkRCCffhjgXc0qjBtXpqJhTBohMUjUQnbBr0xqX3vEKudc4iviTewcJo5ajcec5+wdJw==
+postcss@^8.2.14, postcss@^8.4.21, postcss@^8.4.23, postcss@^8.4.31:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"