diff --git a/package.json b/package.json
index e97f84d..c2942f0 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "chai": "^4.1.2",
-    "coveralls": "^3.0.1",
+    "coveralls": "^3.0.4",
     "cross-env": "^5.1.6",
     "fd-slicer": "^1.0.1",
     "istanbul": "^0.4.5",