diff --git a/package.json b/package.json
index fb6982c..97e3a10 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "chai": "^4.0.0",
-    "coveralls": "^3.0.0",
+    "coveralls": "^3.0.9",
     "eslint": "^6.5.1",
     "eslint-config-airbnb-base": "^14.0.0",
     "eslint-plugin-chai": "0.0.1",