diff --git a/package.json b/package.json
index 2121e6b8..9a24840a 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "lit-html": "2.8.0",
     "npm-run-all": "4.1.5",
     "playwright": "1.37.1",
-    "postcss": "8.4.31",
+    "postcss": "8.5.10",
     "postcss-cli": "10.1.0",
     "postcss-discard-comments": "5.1.2",
     "postcss-discard-empty": "5.1.1",