diff --git a/readme.md b/readme.md
index 747a68b..2df2819 100644
--- a/readme.md
+++ b/readme.md
@@ -1,6 +1,6 @@
 [![GoDoc](https://pkg.go.dev/badge/github.com/mojocn/sseread?status.svg)](https://pkg.go.dev/github.com/mojocn/sseread?tab=doc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/mojocn/sseread?)](https://goreportcard.com/report/github.com/mojocn/sseread)
-[![codecov](https://codecov.io/gh/mojocn/sseread/branch/master/graph/badge.svg)](https://codecov.io/gh/mojocn/sseread)
+[![codecov](https://codecov.io/gh/mojocn/sseread/graph/badge.svg?token=3UC1L5K4LY)](https://codecov.io/gh/mojocn/sseread)
 [![Go version](https://img.shields.io/github/go-mod/go-version/mojocn/sseread.svg)](https://github.com/mojocn/sseread)
 [![Follow mojocn](https://img.shields.io/github/followers/mojocn?label=Follow&style=social)](https://github.com/mojocn)