diff --git a/package.json b/package.json
index ef78ce6..74cc2d8 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "eslint": "^5.0.0",
     "eslint-config-pretty-standard": "^2.0.0",
     "eslint-plugin-prettier": "^3.0.1",
-    "mocha": "^5.1.0",
+    "mocha": "^6.0.0",
     "nyc": "^13.1.0",
     "prettier": "^1.15.3",
     "unexpected": "^11.0.0-3",