Unable to connect to mongodb Atlas instance due to old mongodb driver

[gidonstudinski]

Trying to connect to an Atlas instance, I get the following error:

MongoDB connection error: Load balancer mode requires driver version 4+

Indeed the mongodb driver version in package.json:

  "dependencies": {
    "@modelcontextprotocol/sdk": "^1.1.0",
    "cross-env": "^7.0.3",
    "lodash": "^4.17.21",
    *"mongodb": "^3.7.4",*
    "strip-json-comments": "^5.0.1",
    "zod": "^3.24.2"
  },

Adding to the above, I installed the source code and upated the mongodb driver to the latest 6.15.0 and was able to connect. I can now connect from claude desktop to my mongodb Atlas instance.

[furey]

Hi @gidonstudinski,

Thanks for your investigation and taking the time to share your findings.

I've updated mongodb to 6.15.0 and included in release v9.0.0.

Cheers!