diff --git a/package-lock.json b/package-lock.json
index 686ad37..b5e2f86 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,7 +32,7 @@
                 "lint-staged": "^16.4.0",
                 "oxfmt": "0.58.0",
                 "oxlint": "1.73.0",
-                "postcss": "^8.5.6",
+                "postcss": "^8.5.18",
                 "start-server-and-test": "^2.1.3",
                 "tailwindcss": "^3.4.18",
                 "typescript": "^5.9.3"
@@ -4963,9 +4963,9 @@
             }
         },
         "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 7cee68c..b6bd40e 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
         "lint-staged": "^16.4.0",
         "oxfmt": "0.58.0",
         "oxlint": "1.73.0",
-        "postcss": "^8.5.6",
+        "postcss": "^8.5.18",
         "start-server-and-test": "^2.1.3",
         "tailwindcss": "^3.4.18",
         "typescript": "^5.9.3"