diff --git a/package.json b/package.json
index f04a4d3..f1b46b9 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
-    "coveralls": "^2.11.9",
+    "coveralls": "^2.11.16",
     "istanbul": "^0.4.4",
     "mocha": "^3.0.1"
   }