diff --git a/基础教程/HTTP协议基础/Websocket服务器端例子/myapp/package-lock.json b/基础教程/HTTP协议基础/Websocket服务器端例子/myapp/package-lock.json
index 39964d9..f97d6c0 100644
--- a/基础教程/HTTP协议基础/Websocket服务器端例子/myapp/package-lock.json
+++ b/基础教程/HTTP协议基础/Websocket服务器端例子/myapp/package-lock.json
@@ -448,9 +448,9 @@
       "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "http://clcdata.com:4873/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "longest": {
       "version": "1.0.1",