diff --git a/package-lock.json b/package-lock.json
index c968815..a8a1db4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "mdx-bundler": "^8.0.0",
         "next": "^15.1.6",
         "next-themes": "^0.4.6",
-        "postcss": "^8.5.1",
+        "postcss": "^8.5.3",
         "preact": "^10.25.4",
         "react": "18.3.1",
         "react-dom": "18.3.1",
@@ -13451,9 +13451,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.1",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.1.tgz",
-      "integrity": "sha512-6oz2beyjc5VMn/KV1pPw8fliQkhBXrVn1Z3TVyqZxU8kZpzEKhBdmCFqI6ZbmGtamQvQGuU1sgPTk8ZrXDD7jQ==",
+      "version": "8.5.3",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.3.tgz",
+      "integrity": "sha512-dle9A3yYxlBSrt8Fu+IpjGT8SY8hN0mlaA6GY8t0P5PjIOZemULz/E2Bnm/2dcUOena75OTNkHI76uZBNUUq3A==",
       "funding": [
         {
           "type": "opencollective",
diff --git a/package.json b/package.json
index 1d26017..98985ad 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "mdx-bundler": "^8.0.0",
     "next": "^15.1.6",
     "next-themes": "^0.4.6",
-    "postcss": "^8.5.1",
+    "postcss": "^8.5.3",
     "preact": "^10.25.4",
     "react": "18.3.1",
     "react-dom": "18.3.1",