diff --git a/package.json b/package.json
index bf68a11..e2e13e8 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "hexo": "5.4.2",
     "hexo-generator-index": "^2.0.0",
     "hexo-renderer-marked": "^5.0.0",
-    "postcss": "8.4.5",
+    "postcss": "8.4.31",
     "sass": "^1.50.0",
     "sass-loader": "^12.6.0",
     "tailwindcss": "3.0.5"