diff --git a/package.json b/package.json
index 95701656b..0117ec2c1 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "karma-chrome-launcher": "^3.1.0",
     "karma-mocha": "1.3.0",
     "karma-spec-reporter": "0.0.30",
-    "mocha": "3.2.0",
+    "mocha": "9.0.0",
     "node-static": "0.7.9",
     "pica": "2.0.8",
     "uglify-js": "2.8.3"