diff --git a/package.json b/package.json
index 843643f..10473b7 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "jsdoc": "3.6.3",
     "jsdoc-to-markdown": "^3.1.0-1",
     "nyc": "13.3.0",
-    "sinon": "7.2.3"
+    "sinon": "9.0.2"
   },
   "dependencies": {
     "commander": "2.20.0",