diff --git a/README.md b/README.md
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 # ExcelJS
 
 [![Build Status](https://travis-ci.org/exceljs/exceljs.svg?branch=master)](https://travis-ci.org/exceljs/exceljs)
+[![Code Quality: Javascript](https://img.shields.io/lgtm/grade/javascript/g/exceljs/exceljs.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/exceljs/exceljs/context:javascript)
+[![Total Alerts](https://img.shields.io/lgtm/alerts/g/exceljs/exceljs.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/exceljs/exceljs/alerts)
 
 Read, manipulate and write spreadsheet data and styles to XLSX and JSON.