diff --git a/package.json b/package.json
index 7d7722c..bbf8909 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "description": "Simplified SMPP implementation",
   "devDependencies": {
-    "coveralls": "3.0.2",
+    "coveralls": "3.1.1",
     "eslint": "5.7.0",
     "istanbul": "0.4.5",
     "mocha": "6.0.0",