diff --git a/package-lock.json b/package-lock.json
index 0ef6181..5f11e50 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -167,9 +167,9 @@
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     "@types/chai": {
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-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.1.2.tgz",
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+      "version": "4.2.18",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.18.tgz",
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     "@types/mocha": {
       "version": "2.2.47",