diff --git a/package-lock.json b/package-lock.json
index 7283dd3..33c7c25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "packages/*"
       ],
       "devDependencies": {
-        "@webref/css": "^6.10.1",
+        "@webref/css": "^6.10.3",
         "aria-attributes": "^2.0.1",
         "c8": "^9.1.0",
         "html-element-attributes": "^3.3.0",
@@ -290,9 +290,9 @@
       "dev": true
     },
     "node_modules/@webref/css": {
-      "version": "6.10.2",
-      "resolved": "https://registry.npmjs.org/@webref/css/-/css-6.10.2.tgz",
-      "integrity": "sha512-BQepib8uNtlsxZbeVBHk1xdKDQRKFn4Gz73zy/zgRP+0we2v+LT2e8nOqt2KCGfUjSoNkSDS0Wc8z003qJXqFQ==",
+      "version": "6.10.3",
+      "resolved": "https://registry.npmjs.org/@webref/css/-/css-6.10.3.tgz",
+      "integrity": "sha512-a0WpqeSN7dm0avmX7nP/8p8xiyKefL1u/WFMXfmXJQfGt9ysL8in1zwwyGRxQDqLUoYE4GWZbNWnM6DVL5NROw==",
       "dev": true,
       "peerDependencies": {
         "css-tree": "^2.3.1"
diff --git a/package.json b/package.json
index b133e47..3ebc447 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "packages/*"
   ],
   "devDependencies": {
-    "@webref/css": "^6.10.1",
+    "@webref/css": "^6.10.3",
     "aria-attributes": "^2.0.1",
     "c8": "^9.1.0",
     "html-element-attributes": "^3.3.0",