diff --git a/package.json b/package.json
index fd7c913a..ca910ede 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "eslint-plugin-prettier": "^5.0.0",
     "eslint-plugin-simple-import-sort": "^10.0.0",
     "jsdom": "^22.1.0",
-    "postcss": "^8.4.29",
+    "postcss": "^8.4.31",
     "prettier": "^3.0.3",
     "react": "npm:@preact/compat",
     "react-dom": "npm:@preact/compat",
diff --git a/yarn.lock b/yarn.lock
index 316f6abe..3a0dda83 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4289,10 +4289,10 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8, postcss@^8.4.23, postcss@^8.4.27, postcss@^8.4.29:
-  version "8.4.29"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.29.tgz#33bc121cf3b3688d4ddef50be869b2a54185a1dd"
-  integrity sha512-cbI+jaqIeu/VGqXEarWkRCCffhjgXc0qjBtXpqJhTBohMUjUQnbBr0xqX3vEKudc4iviTewcJo5ajcec5+wdJw==
+postcss@^8, postcss@^8.4.23, postcss@^8.4.27, 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"