diff --git a/4-testing-callbacks/package-lock.json b/4-testing-callbacks/package-lock.json
index e9fc7f8..dc8a734 100644
--- a/4-testing-callbacks/package-lock.json
+++ b/4-testing-callbacks/package-lock.json
@@ -430,9 +430,9 @@
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+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
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