diff --git a/test/fixtures/wpt/resources/webidl2/package.json b/test/fixtures/wpt/resources/webidl2/package.json
index 92faccafa813fb..3ca801efed92f0 100644
--- a/test/fixtures/wpt/resources/webidl2/package.json
+++ b/test/fixtures/wpt/resources/webidl2/package.json
@@ -13,7 +13,7 @@
   "devDependencies": {
     "expect": "22.4.0",
     "jsondiffpatch": "0.3.5",
-    "mocha": "5.0.4"
+    "mocha": "11.0.1"
   },
   "scripts": {
     "test": "mocha",