diff --git a/package.json b/package.json
index 554e186..8dec72a 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   "devDependencies": {
     "blanket": "1.1.7",
     "chai": "3.4.1",
-    "coveralls": "2.11.6",
+    "coveralls": "2.11.9",
     "mocha": "2.3.3",
     "mocha-lcov-reporter": "1.0.0",
     "mocha-text-cov": "0.1.0"