Update package.json

Let's see if we can fix the issue with the bluebird global promise and the stream trying to connect too fast and missing the exception.  redis/ioredis#977

package.json

@@ -23,7 +23,7 @@
     "cron-parser": "^2.13.0",
     "debuglog": "^1.0.0",
     "get-port": "^5.1.1",
-    "ioredis": "^4.14.1",
+    "ioredis": "^4.16.2",
     "lodash": "^4.17.19",
     "p-timeout": "^3.2.0",
     "promise.prototype.finally": "^3.1.2",