diff --git a/web/package-lock.json b/web/package-lock.json
index 17a950f..582767f 100644
--- a/web/package-lock.json
+++ b/web/package-lock.json
@@ -37,7 +37,7 @@
         "eslint-plugin-react-refresh": "^0.4.9",
         "globals": "^17.11.0",
         "jsdom": "^30.0.1",
-        "postcss": "^8.4.41",
+        "postcss": "^8.5.28",
         "tailwindcss": "^3.4.9",
         "typescript": "^5.9.3",
         "typescript-eslint": "^8.68.0",
@@ -5603,9 +5603,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.26",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.26.tgz",
-      "integrity": "sha512-u82N74LFzG8ca+dD8puPnplTXoGH4fTPpVGuIbt36G3qvNlkvfD0lEAZSxaly3KX8TS/L1A1gsCEmvKmBcVbkQ==",
+      "version": "8.5.28",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.28.tgz",
+      "integrity": "sha512-RRuzqDtt5Y9h3quz5hWhK+TPnsmVs6WwSU6LkJMeY4HstUEDuYTG8UJSdawMRzmzAtV+KEoG8N3Qg2qLy5vM/A==",
       "dev": true,
       "funding": [
         {
@@ -5623,7 +5623,7 @@
       ],
       "license": "MIT",
       "dependencies": {
-        "nanoid": "^3.3.17",
+        "nanoid": "^3.3.18",
         "picocolors": "^1.1.1",
         "source-map-js": "^1.2.1"
       },
diff --git a/web/package.json b/web/package.json
index dc49b48..ef80b80 100644
--- a/web/package.json
+++ b/web/package.json
@@ -45,7 +45,7 @@
     "eslint-plugin-react-refresh": "^0.4.9",
     "globals": "^17.11.0",
     "jsdom": "^30.0.1",
-    "postcss": "^8.4.41",
+    "postcss": "^8.5.28",
     "tailwindcss": "^3.4.9",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.68.0",