diff --git a/package.json b/package.json
index aca01de..bcf0af3 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "blue-tape": "^1.0.0",
     "chai": "^4.1.0",
     "lodash": "^4.17.4",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.0",
     "onchange": "^3.2.1",
     "tap-spec": "^4.1.1",
     "ts-node": "^4.0.0",