diff --git a/tests/package.json b/tests/package.json
index 0295910..55f85d6 100644
--- a/tests/package.json
+++ b/tests/package.json
@@ -6,7 +6,7 @@
     "install": "jam install"
   },
   "dependencies": {
-    "ws": "~0.4.21",
+    "ws": "~7.2.1",
     "stack": "~0.1.0",
     "creationix": "~0.3.1",
     "jamjs": "~0.2.8"