diff --git a/ts_in_action_0831/package-lock.json b/ts_in_action_0831/package-lock.json
index bb2b657..045e36e 100644
--- a/ts_in_action_0831/package-lock.json
+++ b/ts_in_action_0831/package-lock.json
@@ -1974,30 +1974,10 @@
       }
     },
     "follow-redirects": {
-      "version": "1.8.1",
-      "resolved": "https://registry.npm.taobao.org/follow-redirects/download/follow-redirects-1.8.1.tgz",
-      "integrity": "sha1-JIBPnqq2cWCw6EDAhYhdYGNxo1s=",
-      "dev": true,
-      "requires": {
-        "debug": "^3.0.0"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npm.taobao.org/debug/download/debug-3.2.6.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fdebug%2Fdownload%2Fdebug-3.2.6.tgz",
-          "integrity": "sha1-6D0X3hbYp++3cX7b5fsQE17uYps=",
-          "dev": true,
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "ms": {
-          "version": "2.1.2",
-          "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.1.2.tgz",
-          "integrity": "sha1-0J0fNXtEP0kzgqjrPM0YOHKuYAk=",
-          "dev": true
-        }
-      }
+      "version": "1.14.7",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.14.7.tgz",
+      "integrity": "sha512-+hbxoLbFMbRKDwohX8GkTataGqO6Jb7jGwpAlwgy2bIz25XtRm7KEzJM76R1WiNT5SwZkX4Y75SwBolkpmE7iQ==",
+      "dev": true
     },
     "for-in": {
       "version": "1.0.2",