diff --git a/package.json b/package.json
index edc24f7..df083ea 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "uglify-js": "^3.3.27"
   },
   "devDependencies": {
-    "coveralls": "^3.0.1",
+    "coveralls": "^3.0.3",
     "istanbul": "^0.4.5",
     "tressa": "^0.3.1"
   }