diff --git a/package-lock.json b/package-lock.json
index 51eb6b5..537929a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "jsdom": "^28.1.0",
         "pixelmatch": "^7.2.0",
         "pngjs": "^7.0.0",
-        "postcss": "^8.5.16",
+        "postcss": "^8.5.18",
         "prettier": "^3.9.4",
         "tailwindcss": "^4.1.8",
         "typescript": "5.9.3",
@@ -7632,9 +7632,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.16",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.16.tgz",
-      "integrity": "sha512-vuwillviilfKZsg0VGj5R/YwwcHx4SLsIOI/7K6mQkWx+l5cUHTjj5g0AasTBcyXsbfTgrwsUNmVUb5xVwyPwg==",
+      "version": "8.5.18",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.18.tgz",
+      "integrity": "sha512-xdB1oSLHbz1vRWgCDalrCqEFTWzFlhqFC5tIHLMOSUIjhm3XXQ1qrFy8S/ESr1JYRRXqM3c1QFiMZUJdUTqyMQ==",
       "dev": true,
       "funding": [
         {
diff --git a/package.json b/package.json
index 3c5ecfe..3d23345 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "jsdom": "^28.1.0",
     "pixelmatch": "^7.2.0",
     "pngjs": "^7.0.0",
-    "postcss": "^8.5.16",
+    "postcss": "^8.5.18",
     "prettier": "^3.9.4",
     "tailwindcss": "^4.1.8",
     "typescript": "5.9.3",