diff --git a/package-lock.json b/package-lock.json
index 45030b0..a97eaf8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,9 +36,9 @@
       }
     },
     "@types/chai": {
-      "version": "4.2.7",
-      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.7.tgz",
-      "integrity": "sha512-luq8meHGYwvky0O7u0eQZdA7B4Wd9owUCqvbw2m3XCrCU8mplYOujMBbvyS547AxJkC+pGnd0Cm15eNxEUNU8g==",
+      "version": "4.2.18",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.18.tgz",
+      "integrity": "sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ==",
       "dev": true
     },
     "@types/mocha": {