fix(package): update ws to version 6.1.3

greenkeeper[bot] · greenkeeper[bot] · commit 1a9f97ff156d · 2019-01-24T07:12:53.000Z
Closes #9
diff --git a/package.json b/package.json
@@ -14,7 +14,7 @@
     "test": "make check"
   },
   "dependencies": {
-    "ws": "^2.3.1"
+    "ws": "^6.1.3"
   },
   "devDependencies": {
     "chai": "^3.5.0",
