diff --git a/tools/node_modules/eslint/node_modules/ms/package.json b/tools/node_modules/eslint/node_modules/ms/package.json
index eea666e1fb03d6..6321dc4be65f7b 100644
--- a/tools/node_modules/eslint/node_modules/ms/package.json
+++ b/tools/node_modules/eslint/node_modules/ms/package.json
@@ -32,6 +32,6 @@
     "expect.js": "0.3.1",
     "husky": "0.14.3",
     "lint-staged": "5.0.0",
-    "mocha": "4.0.1"
+    "mocha": "5.0.3"
   }
 }