diff --git a/package.json b/package.json
index b2b0ec7..be4979f 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "iced-coffee-coverage": "^1.0.2",
     "iced-coffee-script": "^108.0.11",
     "istanbul": "^0.4.4",
-    "mocha": "^3.0.2",
+    "mocha": "^4.1.0",
     "sinon": "^3.2.1"
   }
 }