diff --git a/package.json b/package.json
index 1836747..86977de 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "csswring": "5.0.0",
     "mime": "1.4.1",
     "mincer": "2.0.1",
-    "postcss": "5.0.21",
+    "postcss": "8.4.31",
     "uglify-js": "2.6.2"
   },
   "devDependencies": {