diff --git a/package.json b/package.json
index 089ac2b..eaf0927 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@types/ws": "6.0.2",
     "autobahn": "18.3.2",
     "chai": "4.2.0",
-    "coveralls": "3.0.2",
+    "coveralls": "3.0.9",
     "gulp": "3.9.1",
     "gulp-clean": "0.4.0",
     "gulp-jsbeautify": "0.1.1",