diff --git a/package.json b/package.json
index b083fbb..a492da6 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "babel-preset-es2015": "^6.16.0",
     "babel-preset-react": "^6.16.0",
     "jsdom": "^11.0.0",
-    "mocha": "^4.0.0",
+    "mocha": "^5.0.0",
     "sinon": "^4.0.0",
     "unexpected": "^10.36.0",
     "unexpected-sinon": "^10.1.1"