diff --git a/package.json b/package.json
index 73387f4..daca4aa 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
-    "coveralls": "^2.11.6",
+    "coveralls": "^2.11.14",
     "eslint": "^3.2.2",
     "eslint-config-defaults": "^9.0.0",
     "nyc": "^8.1.0",