diff --git a/package.json b/package.json
index d56b231..7353f21 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "alpinejs": "^3.10.5",
     "autoprefixer": "^10.4.12",
     "concurrently": "^7.6.0",
-    "postcss": "^8.4.20",
+    "postcss": "^8.4.21",
     "postcss-cli": "^10.1.0",
     "tailwindcss": "^3.2.4",
     "test": "^3.2.1"
diff --git a/yarn.lock b/yarn.lock
index 2fee903..d6425a3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -797,10 +797,10 @@ 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@^8.4.18, 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@^8.4.18, 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"