diff --git a/platform/apps/agent-sync-desktop/ui/package-lock.json b/platform/apps/agent-sync-desktop/ui/package-lock.json
index e08bbcf..92bc407 100644
--- a/platform/apps/agent-sync-desktop/ui/package-lock.json
+++ b/platform/apps/agent-sync-desktop/ui/package-lock.json
@@ -37,7 +37,7 @@
         "jsdom": "^28.1.0",
         "oxlint": "^1.50.0",
         "oxlint-tsgolint": "^0.15.0",
-        "postcss": "^8.4.49",
+        "postcss": "^8.5.8",
         "prettier": "^3.6.2",
         "tailwindcss": "^3.4.19",
         "typescript": "^5.7.2",
@@ -5885,7 +5885,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.6",
+      "version": "8.5.8",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
+      "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
       "dev": true,
       "funding": [
         {
diff --git a/platform/apps/agent-sync-desktop/ui/package.json b/platform/apps/agent-sync-desktop/ui/package.json
index c7abdbe..90d74c8 100644
--- a/platform/apps/agent-sync-desktop/ui/package.json
+++ b/platform/apps/agent-sync-desktop/ui/package.json
@@ -53,7 +53,7 @@
     "jsdom": "^28.1.0",
     "oxlint": "^1.50.0",
     "oxlint-tsgolint": "^0.15.0",
-    "postcss": "^8.4.49",
+    "postcss": "^8.5.8",
     "prettier": "^3.6.2",
     "tailwindcss": "^3.4.19",
     "typescript": "^5.7.2",