diff --git a/20180926leetcode/20180926three-sum/package-lock.json b/20180926leetcode/20180926three-sum/package-lock.json
index 666b0f5..42afaeb 100644
--- a/20180926leetcode/20180926three-sum/package-lock.json
+++ b/20180926leetcode/20180926three-sum/package-lock.json
@@ -14,9 +14,9 @@
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-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
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+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
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