diff --git a/package.json b/package.json
index d4564d4..98b1ddf 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "simple-mime": "~0.0.5",
     "smith": "~0.1.1",
-    "ws": "~0.4.20"
+    "ws": "~7.2.1"
   },
   "devDependencies": {
     "chai": "~1.2.0",