On April 30, 2018, Node.js 4 was officially marked as End of Life (EOL) and ceased to receive security updates.
The last version of the Snyk CLI that supported node 4 is
1.143.6. This version was released in April 2019, and there have been many significant feature and security improvements since then.
For guidance on installing this version if it is required, please see most recent version of the cli that supports node.js 4 .