diff --git a/package.json b/package.json
index 1b438a4a1..1a891c9fd 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "dayjs": "^1.11.19",
     "google-palette": "^1.1.1",
     "highlight.js": "^11.11.1",
-    "postcss": "^8.5.6",
+    "postcss": "^8.5.8",
     "postcss-cli": "^11.0.1",
     "postcss-import": "^16.1.1",
     "postcss-nesting": "^14.0.0",
diff --git a/yarn.lock b/yarn.lock
index d214060e1..b3772cebd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -941,10 +941,10 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.5.6:
-  version "8.5.6"
-  resolved "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz"
-  integrity sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==
+postcss@^8.5.6, postcss@^8.5.8:
+  version "8.5.8"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.8.tgz#6230ecc8fb02e7a0f6982e53990937857e13f399"
+  integrity sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==
   dependencies:
     nanoid "^3.3.11"
     picocolors "^1.1.1"