diff --git a/example/ch11/ch11-react-router-demo/package-lock.json b/example/ch11/ch11-react-router-demo/package-lock.json
index 9ff26ce..49c5fcd 100644
--- a/example/ch11/ch11-react-router-demo/package-lock.json
+++ b/example/ch11/ch11-react-router-demo/package-lock.json
@@ -11968,9 +11968,9 @@
       }
     },
     "url-parse": {
-      "version": "1.4.7",
-      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.7.tgz",
-      "integrity": "sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==",
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.3.tgz",
+      "integrity": "sha512-IIORyIQD9rvj0A4CLWsHkBBJuNqWpFQe224b6j9t/ABmquIS0qDU2pY6kl6AuOrL5OkCXHMCFNe1jBcuAggjvQ==",
       "requires": {
         "querystringify": "^2.1.1",
         "requires-port": "^1.0.0"