diff --git a/README.md b/README.md
index 080816ab..9851ec65 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/sunny0826/kubecm)](https://goreportcard.com/report/github.com/sunny0826/kubecm)
 ![GitHub](https://img.shields.io/github/license/sunny0826/kubecm.svg)
 [![GitHub release](https://img.shields.io/github/release/sunny0826/kubecm)](https://github.com/sunny0826/kubecm/releases)
-[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](undefined)
+[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](https://codecov.io/gh/sunny0826/kubecm)
 
 ```text
 Manage your kubeconfig more easily.
diff --git a/docs/en-us/README.md b/docs/en-us/README.md
index bb5fa6bb..a91fbf16 100644
--- a/docs/en-us/README.md
+++ b/docs/en-us/README.md
@@ -4,7 +4,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/sunny0826/kubecm)](https://goreportcard.com/report/github.com/sunny0826/kubecm)
 ![GitHub](https://img.shields.io/github/license/sunny0826/kubecm.svg)
 [![GitHub release](https://img.shields.io/github/release/sunny0826/kubecm)](https://github.com/sunny0826/kubecm/releases)
-[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](undefined)
+[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](https://codecov.io/gh/sunny0826/kubecm)
 
 ```text
 Manage your kubeconfig more easily.
diff --git a/docs/zh-cn/README.md b/docs/zh-cn/README.md
index e9a14537..ca425626 100644
--- a/docs/zh-cn/README.md
+++ b/docs/zh-cn/README.md
@@ -4,7 +4,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/sunny0826/kubecm)](https://goreportcard.com/report/github.com/sunny0826/kubecm)
 ![GitHub](https://img.shields.io/github/license/sunny0826/kubecm.svg)
 [![GitHub release](https://img.shields.io/github/release/sunny0826/kubecm)](https://github.com/sunny0826/kubecm/releases)
-[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](undefined)
+[![codecov](https://codecov.io/gh/sunny0826/kubecm/branch/master/graph/badge.svg?token=KGTLBQ8HYZ)](https://codecov.io/gh/sunny0826/kubecm)
 
 ```text
 Manage your kubeconfig more easily.