diff --git a/error-reporting/package.json b/error-reporting/package.json
index e57c602750..cb8d16ca84 100644
--- a/error-reporting/package.json
+++ b/error-reporting/package.json
@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.0.0",
-    "mocha": "^5.2.0",
+    "mocha": "^6.0.0",
     "proxyquire": "^2.0.1",
     "sinon": "^7.0.0"
   }