diff --git a/package.json b/package.json
index 4916731..f961c85 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "eslint": "^4.14.0",
     "eslint-config-tschaub": "^10.0.0",
     "gulp": "^3.9.1",
-    "mocha": "^4.1.0",
+    "mocha": "^6.0.0",
     "mock-fs": "^4.4.2",
     "vinyl": "^2.1.0"
   },