diff --git a/package.json b/package.json
index 2be047c..bd497ef 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   },
   "homepage": "https://github.com/Gerhut/create-function#readme",
   "devDependencies": {
-    "mocha": "^8.0.1",
+    "mocha": "^9.0.0",
     "nyc": "^15.0.0",
     "should": "^13.0.1",
     "standard": "^16.0.1"