POST request from web browser throws error while Postman doesn't. How to prevent Axios from putting quotes around values?

I am using Formik and React to POST to an .NetCore Entity Framework API.

In Postman, it POSTs fine with no errors. However, when doing a POST from a web browser, I am getting an error.

After examining both the Postman request and the request sent by the browser, the only difference I see is this:

Postman works - no quote around the value:

"galaxyTypeId": 1,

Axios Post - it puts quotes around the value:

"galaxyTypeId": "4",

I get this error in the browser:

POST https://localhost:44376/api/getformdata 400
createError.js:16 Uncaught (in promise) Error: Request failed with status code 400
at createError (createError.js:16)
at settle (settle.js:17)
at XMLHttpRequest.handleLoad (xhr.js:61)

Here is the relevant section of code:

<Formik
        initialValues={{
            gameAdminEmail: "",
            adminName: "",
            phone: "",
            galaxyTypeId: 1,
            starId: 1,
            description: "",
            gameUrl: "",
        }}
        onSubmit={async values => {
            await new Promise(resolve => setTimeout(resolve, 500));
            axios({
                method: "POST",
                url: "https://localhost:44376/api/getformdata",
                data: values
            });
            console.log(JSON.stringify(values, null, 2));
        }}

    >

Is there a way to prevent Axios from putting quotes around the number values?

Thanks!