Use of const in strict mode (Node.js and Mongoose) - node.js

Question

I have seen this question asked many times around here, but none of the solutions seem to fit my case.
I am using Node.js to access a MongoDB database. I am using Mongoose library. All on Ubuntu 14.04.
When trying to run "nodejs myfile.js" I get this error:
const deprecationWarning = 'The `MONGOOSE_DRIVER_PATH` global property is '
^^^^^
SyntaxError: Use of const in strict mode.
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/root/nodejs/node_modules/mongoose/index.js:9:18)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
The main solution I found is upgrading Node.js with this commands:
sudo npm cache clean -f
sudo npm install -g n
sudo n stable
but the result after is the same.
Also tried to run it with 'harmony' flag:
nodejs --harmony myfile.js
...but I still get similar errors like:
for (const key of ['Schema', 'model']) {
^^
SyntaxError: Unexpected identifier
My dependencies in package.json are:
"dependencies": {
"express": "~4.17.1",
"mongoose": "~5.7.5"
}
And my Node.js version is v0.10.25
It seems I don't get to find the correct combination of packages or I am doing something else wrong. Any help would be appreciated.