diff --git a/package.json b/package.json
index 6e0262f..38eaca1 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "author": "drpaulbrewer@gmail.com",
   "license": "MIT",
   "devDependencies": {
-    "coveralls": "^3.0.0",
+    "coveralls": "^3.0.6",
     "istanbul": "^0.4.2",
     "mocha": "^6.0.0",
     "should": "^13.1.3"