diff --git a/package.json b/package.json
index eeba734a..a882f674 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "eslint": "^4.12.1",
     "glob": "^7.1.2",
     "istanbul": "^0.4.5",
-    "mocha": "^4.0.1",
+    "mocha": "^5.0.0",
     "prettier": "^1.9.0",
     "remap-istanbul": "^0.10.0",
     "typescript": "^2.6.2",