diff --git a/packages/css/package.json b/packages/css/package.json
index e1b6c05c2ec9..5b80b9d82611 100644
--- a/packages/css/package.json
+++ b/packages/css/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@webref/css",
   "description": "CSS definitions of the web platform",
-  "version": "6.21.0",
+  "version": "6.21.1",
   "repository": {
     "type": "git",
     "url": "https://github.com/w3c/webref.git"