diff --git a/demo/package-lock.json b/demo/package-lock.json
index 2717846..49c626d 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -14,7 +14,7 @@
       "devDependencies": {
         "@vitejs/plugin-vue": "^4.2.3",
         "autoprefixer": "^10.4.15",
-        "postcss": "^8.4.28",
+        "postcss": "^8.4.31",
         "tailwindcss": "^3.3.3",
         "typescript": "^5.0.2",
         "vite": "^4.4.5",
@@ -1080,9 +1080,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.28",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.28.tgz",
-      "integrity": "sha512-Z7V5j0cq8oEKyejIKfpD8b4eBy9cwW2JWPk0+fB1HOAMsfHbnAXLLS+PfVWlzMSLQaWttKDt607I0XHmpE67Vw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "funding": [
         {
           "type": "opencollective",
@@ -2340,9 +2340,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.28",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.28.tgz",
-      "integrity": "sha512-Z7V5j0cq8oEKyejIKfpD8b4eBy9cwW2JWPk0+fB1HOAMsfHbnAXLLS+PfVWlzMSLQaWttKDt607I0XHmpE67Vw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "requires": {
         "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",
diff --git a/demo/package.json b/demo/package.json
index c760c33..c85044f 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -15,7 +15,7 @@
   "devDependencies": {
     "@vitejs/plugin-vue": "^4.2.3",
     "autoprefixer": "^10.4.15",
-    "postcss": "^8.4.28",
+    "postcss": "^8.4.31",
     "tailwindcss": "^3.3.3",
     "typescript": "^5.0.2",
     "vite": "^4.4.5",