diff --git a/javascript-firestore-auth-crash-course/package-lock.json b/javascript-firestore-auth-crash-course/package-lock.json
index b221a05..ab97def 100644
--- a/javascript-firestore-auth-crash-course/package-lock.json
+++ b/javascript-firestore-auth-crash-course/package-lock.json
@@ -7261,12 +7261,6 @@
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-          "integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=",
-          "dev": true
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@@ -12232,6 +12226,12 @@
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+    "ip": {
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+      "resolved": "https://registry.npmjs.org/ip/-/ip-1.1.9.tgz",
+      "integrity": "sha512-cyRxvOEpNHNtchU3Ln9KC/auJgup87llfQpQ+t5ghoC/UhL16SWzbueiCsdTnWmqAWl7LadfuwhlqmtOaqMHdQ==",
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       "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.8.1.tgz",