diff --git a/package.json b/package.json
index cb8b947..c65f2a4 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "esbuild-plugin-inline-import": "^1.1.0",
     "eslint": "^8.57.1",
     "eslint-config-prettier": "^9.1.0",
-    "postcss": "^8.5.3",
+    "postcss": "^8.5.6",
     "postcss-url": "^10.1.3"
   },
   "dependencies": {
diff --git a/yarn.lock b/yarn.lock
index d45e6b2..8bc8aed 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -976,10 +976,10 @@ postcss-url@^10.1.3:
     minimatch "~3.0.4"
     xxhashjs "~0.2.2"
 
-postcss@^8.5.3:
-  version "8.5.4"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.4.tgz#d61014ac00e11d5f58458ed7247d899bd65f99c0"
-  integrity sha512-QSa9EBe+uwlGTFmHsPKokv3B/oEMQZxfqW0QqNCyhpa6mB1afzulwn8hihglqAb2pOw+BJgNlmXQ8la2VeHB7w==
+postcss@^8.5.6:
+  version "8.5.6"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.5.6.tgz#2825006615a619b4f62a9e7426cc120b349a8f3c"
+  integrity sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==
   dependencies:
     nanoid "^3.3.11"
     picocolors "^1.1.1"