diff --git a/package.json b/package.json
index 2d89c74df..922237705 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "lodash": "4.18.1",
     "mini-css-extract-plugin": "1.6.2",
     "node-fetch": "2.7.0",
-    "postcss": "8.5.17",
+    "postcss": "8.5.18",
     "postcss-loader": "8.2.1",
     "postcss-reporter": "7.1.0",
     "promise-retry": "2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 8fa4763c2..0a034987b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11738,10 +11738,10 @@ postcss-value-parser@^4.1.0, 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@8.5.17:
-  version "8.5.17"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.17.tgz#45f1f5fd542e2bc18ba8bbf92c85c3cd8485c285"
-  integrity sha512-J7EF+8X+CzRPaJPOv9Ck2wNWJvGnnl3PcNPAdGg6GTLjyVpyQ0yATMSXRFRV01BviT/9Gwuc3rjEyJbDJG9a4w==
+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 "^3.3.12"
     picocolors "^1.1.1"