diff --git a/package.json b/package.json
index 66b26f6..c7d4134 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   },
   "devDependencies": {
     "browserify": "^13.0.0",
-    "coveralls": "^2.11.8",
+    "coveralls": "^2.11.13",
     "eslint": "^2.2.0",
     "eslint-plugin-mocha": "^2.0.0",
     "istanbul": "^0.4.2",