diff --git a/package.json b/package.json
index 6d5c64e..80e315d 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "@types/mocha": "8.0.4",
     "@typescript-eslint/eslint-plugin": "4.8.2",
     "@typescript-eslint/parser": "4.8.2",
-    "chai": "4.2.0",
+    "chai": "4.3.4",
     "eslint": "7.14.0",
     "eslint-config-prettier": "6.15.0",
     "eslint-plugin-prettier": "3.1.4",