diff --git a/content/en/docs/upgrade/upgrade-with-ks-installer.md b/content/en/docs/upgrade/upgrade-with-ks-installer.md
index dee1e957d..23706405c 100644
--- a/content/en/docs/upgrade/upgrade-with-ks-installer.md
+++ b/content/en/docs/upgrade/upgrade-with-ks-installer.md
@@ -7,7 +7,7 @@ linkTitle: "Upgrade with ks-installer"
 weight: 150
 ---
 
-ks-installer is recommended for users whose Kubernetes clusters were not setup via [KubeSphere Installer](https://v2-1.docs.kubesphere.io/docs/installation/all-in-one/#step-2-download-installer-package), but hosted by cloud vendors. This tutorial guides to **upgrade KubeSphere only**. Cluster operator are responsible for upgrading Kubernetes on themselves beforehand.
+ks-installer is recommended for users whose Kubernetes clusters were not setup via [KubeSphere Installer](https://v2-1.docs.kubesphere.io/docs/installation/all-in-one/#step-2-download-installer-package), but hosted by cloud vendors. This tutorial guides to **upgrade KubeSphere only**. Cluster operators are responsible for upgrading Kubernetes on themselves beforehand.
 
 ## Prerequisite
 
@@ -41,4 +41,4 @@ Sync the changes from the v2.1.1 to v3.0.0 into the config section of `cluster-c
 ```
 kubectl apply -f kubesphere-installer.yaml
 kubectl apply -f cluster-configuration.yaml
-```
\ No newline at end of file
+```