diff --git a/README.md b/README.md
index 3130e39c1e..d52b70101b 100644
--- a/README.md
+++ b/README.md
@@ -552,7 +552,7 @@ volumes:
   file_volume:
 ```
 
-## 7.2 K8s
+## 7.2 K8S
 
 First, create a `k8s-heartbeat.yml` file, and copy below code into the file.
 
@@ -624,4 +624,4 @@ Then, execute this command
 kubectl apply -f k8s-heartbeat.yml
 ```
 
-You also can deploy Heartbeats in multiple instances using k8s through the following [documentation](https://au-heartbeat.github.io/Heartbeat/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s/).
+You also can deploy Heartbeats in multiple instances using K8S through the following [documentation](https://au-heartbeat.github.io/Heartbeat/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s/).
diff --git a/docs/src/content/docs/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s.mdx b/docs/src/content/docs/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s.mdx
index bb51b07890..3aa49acf67 100644
--- a/docs/src/content/docs/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s.mdx
+++ b/docs/src/content/docs/en/devops/how-to-deploy-heartbeat-in-multiple-instances-by-k8s.mdx
@@ -1,11 +1,11 @@
 ---
-title: How to deploy heartbeat in multiple instances by k8s
-description: How to deploy heartbeat in multiple instances by k8s
+title: How to deploy heartbeat in multiple instances by K8S
+description: How to deploy heartbeat in multiple instances by K8S
 ---
 
 ## Solutions
 
-Following the next tutorial, you can use Heartbeat in the k8s environment more conveniently.
+Following the next tutorial, you can use Heartbeat in the K8S environment more conveniently.
 
 ## Multiple instances deploy tutorial
 
@@ -122,7 +122,7 @@ Then, execute this command
 kubectl apply -f k8s-heartbeat.yml
 ```
 
-## K8s resource recycling
+## K8S resource recycling
 
 If for some reason you need to restore the system to its pre-deployment state, you can use the following command.