diff --git a/gui/package-lock.json b/gui/package-lock.json
index 52f6f4bc..7c6a0f9c 100644
--- a/gui/package-lock.json
+++ b/gui/package-lock.json
@@ -18,7 +18,7 @@
       },
       "devDependencies": {
         "@tailwindcss/postcss": "^4.1.13",
-        "postcss": "^8.4.49",
+        "postcss": "^8.5.14",
         "prettier": "^3.7.4",
         "smol-toml": "^1.3.0",
         "solid-devtools": "^0.34.3",
@@ -2421,9 +2421,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.5.8",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
-      "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
+      "version": "8.5.14",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.14.tgz",
+      "integrity": "sha512-SoSL4+OSEtR99LHFZQiJLkT59C5B1amGO1NzTwj7TT1qCUgUO6hxOvzkOYxD+vMrXBM3XJIKzokoERdqQq/Zmg==",
       "funding": [
         {
           "type": "opencollective",
diff --git a/gui/package.json b/gui/package.json
index bce4f991..0146502e 100644
--- a/gui/package.json
+++ b/gui/package.json
@@ -15,7 +15,7 @@
   "license": "GPL-3.0-or-later",
   "devDependencies": {
     "@tailwindcss/postcss": "^4.1.13",
-    "postcss": "^8.4.49",
+    "postcss": "^8.5.14",
     "prettier": "^3.7.4",
     "smol-toml": "^1.3.0",
     "solid-devtools": "^0.34.3",