diff --git a/packages/google-monitoring-dashboard/package.json b/packages/google-monitoring-dashboard/package.json
index 1b6994e3d90..084f9312f21 100644
--- a/packages/google-monitoring-dashboard/package.json
+++ b/packages/google-monitoring-dashboard/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "@types/mocha": "^7.0.0",
     "@types/node": "^12.0.0",
-    "@types/sinon": "^7.5.2",
+    "@types/sinon": "^9.0.0",
     "c8": "^7.0.0",
     "eslint": "^6.8.0",
     "eslint-config-prettier": "^6.9.0",