diff --git a/packages/@vue/cli-plugin-unit-mocha/package.json b/packages/@vue/cli-plugin-unit-mocha/package.json
index 61d1283938..46db759680 100644
--- a/packages/@vue/cli-plugin-unit-mocha/package.json
+++ b/packages/@vue/cli-plugin-unit-mocha/package.json
@@ -25,7 +25,7 @@
     "@vue/cli-shared-utils": "^4.0.0-rc.1",
     "jsdom": "^15.1.0",
     "jsdom-global": "^3.0.2",
-    "mocha": "^6.1.4",
+    "mocha": "^9.1.2",
     "mochapack": "^1.1.1"
   },
   "devDependencies": {