diff --git a/package.json b/package.json
index cbf1e09..16bf981 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
   "scripts": {
     "start": "NODE_ENV=production node ./bootstrap.js",
     "dev": "cross-env NODE_ENV=local mwtsc --watch --run @midwayjs/mock/app.js",
-    "cov": "midway-bin cov --ts",
+    "cov": "jest --coverage",
     "lint": "mwts check",
     "lint:fix": "mwts fix",
     "ci": "npm run cov",