diff --git a/package.json b/package.json
index 21d47d5f7..66840ab9e 100644
--- a/package.json
+++ b/package.json
@@ -117,7 +117,7 @@
     "mousetrap": "1.6.5",
     "normalize.css": "8.0.1",
     "npm-run-all2": "5.0.0",
-    "postcss": "8.5.10",
+    "postcss": "8.5.18",
     "postcss-import": "14.0.2",
     "postcss-preset-env": "7.3.0",
     "prettier": "2.5.1",
diff --git a/yarn.lock b/yarn.lock
index 33fad6fdc..8bafd050d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4876,12 +4876,12 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.1.0, postcss-value-parser@^
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@8.5.10:
-  version "8.5.10"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.10.tgz#8992d8c30acf3f12169e7c09514a12fed7e48356"
-  integrity sha512-pMMHxBOZKFU6HgAZ4eyGnwXF/EvPGGqUr0MnZ5+99485wwW41kW91A4LOGxSHhgugZmSChL5AlElNdwlNgcnLQ==
+postcss@8.5.18:
+  version "8.5.18"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.18.tgz#8717e5a33a3b15fe8a538d2431a1e1bbbfb07614"
+  integrity sha512-xdB1oSLHbz1vRWgCDalrCqEFTWzFlhqFC5tIHLMOSUIjhm3XXQ1qrFy8S/ESr1JYRRXqM3c1QFiMZUJdUTqyMQ==
   dependencies:
-    nanoid "^3.3.11"
+    nanoid "^3.3.12"
     picocolors "^1.1.1"
     source-map-js "^1.2.1"