diff --git a/package.json b/package.json
index b682f71a..6fa2d80c 100644
--- a/package.json
+++ b/package.json
@@ -182,7 +182,7 @@
     "node-sass": "^8.0.0",
     "os-browserify": "^0.3.0",
     "path-browserify": "^1.0.1",
-    "postcss": "^8.4.20",
+    "postcss": "^8.4.21",
     "postcss-html": "^1.5.0",
     "postcss-scss": "^4.0.6",
     "prettier": "^2.8.2",
diff --git a/yarn.lock b/yarn.lock
index e71957f9..bd8361bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10000,10 +10000,10 @@ 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@^8.1.10, postcss@^8.3.11, postcss@^8.4.0, postcss@^8.4.19, postcss@^8.4.20:
-  version "8.4.20"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.20.tgz#64c52f509644cecad8567e949f4081d98349dc56"
-  integrity sha512-6Q04AXR1212bXr5fh03u8aAwbLxAQNGQ/Q1LNa0VfOI06ZAlhPHtQvE4OIdpj4kLThXilalPnmDSOD65DcHt+g==
+postcss@^8.1.10, postcss@^8.3.11, postcss@^8.4.0, postcss@^8.4.19, postcss@^8.4.21:
+  version "8.4.21"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.21.tgz#c639b719a57efc3187b13a1d765675485f4134f4"
+  integrity sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"