diff --git a/package.json b/package.json
index 1e71c98..b5f2e7a 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "grunt-stylelint": "0.16.0",
     "grunt-terser": "2.0.0",
     "load-grunt-tasks": "5.1.0",
-    "postcss": "8.4.20",
+    "postcss": "8.4.21",
     "sass": "1.57.0",
     "stylelint": "13.13.1",
     "stylelint-order": "4.1.0",