Why does the npm package I created have a node_modules folder in it when installing it as dependency for another module?

I just published my first npm package. When I install the package as dependency in my project, I open the project folder in node_modules and see that it also has a node_modules folder with one package, history in the folder. I don't have any regular dependencies for my project, only devDependencies so I don't understand why this is happening? You can see my package.json file and try installing the module from the github page here


  • Running npm install will install devDependencies under many circumstances.

    Try explicitly installing in production mode:

    npm install --only=production

    Here is a related answer with more info.