diff --git a/package.json b/package.json
index bdadcd8..0b98186 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "author": "Andrea Giammarchi",
   "license": "ISC",
   "devDependencies": {
-    "coveralls": "^3.0.2",
+    "coveralls": "^3.0.9",
     "istanbul": "^0.4.5",
     "uglify-js": "^3.4.9"
   },