diff --git a/package.json b/package.json
index 7215fa7..db3453d 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
   },
   "devDependencies": {
     "chai": "^3.0.0",
-    "coveralls": "^2.11.2",
+    "coveralls": "^2.13.1",
     "errify": "^1.0.0",
     "istanbul": "^0.4.4",
     "mocha": "^3.1.2",