diff --git a/package.json b/package.json
index 532545f..4f81f60 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@types/node": "14.0.27",
     "benchmark": "2.1.4",
     "chai": "4.2.0",
-    "mocha": "8.1.1",
+    "mocha": "9.0.2",
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
     "tslint": "6.1.3",