Worked for me:
// config/logger.ts
'use strict';
const {
winston,
formats: { prettyPrint, levelFilter },
} = require('@strapi/logger');
module.exports = {
transports: [
new winston.transports.Console({
level: 'warn',
format: winston.format.combine(
levelFilter('http'),
prettyPrint({ timestamps: 'YYYY-MM-DD hh:mm:ss.SSS' })
),
}),
],
};