diff --git a/package.json b/package.json
index 0e7bc66..4c0095d 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "author": "Andrea Giammarchi",
   "license": "ISC",
   "devDependencies": {
-    "coveralls": "^3.0.9",
+    "coveralls": "^3.0.13",
     "istanbul": "^0.4.5",
     "uglify-js": "^3.7.0"
   },