diff --git a/chapter4/node-serial-benchmark/package-lock.json b/chapter4/node-serial-benchmark/package-lock.json
index 5a04235..f872825 100644
--- a/chapter4/node-serial-benchmark/package-lock.json
+++ b/chapter4/node-serial-benchmark/package-lock.json
@@ -500,9 +500,9 @@
       }
     },
     "minimist": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npm.taobao.org/minimist/download/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
     },
     "nan": {
       "version": "1.0.0",