diff --git a/docs/en-us/install.md b/docs/en-us/install.md
index 18f60b34..aa95e528 100644
--- a/docs/en-us/install.md
+++ b/docs/en-us/install.md
@@ -21,12 +21,13 @@ brew install kubecm
 [![GitHub release](https://img.shields.io/github/release/sunny0826/kubecm)](https://github.com/sunny0826/kubecm/releases)
 
 ```bash
+VERSION=v0.27.1 # replace with the version you want, note the "v" prefix!
 # linux x86_64
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Linux_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Linux_x86_64.tar.gz
 # macos
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Darwin_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Darwin_x86_64.tar.gz
 # windows
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Windows_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Windows_x86_64.tar.gz
 
 # linux & macos
 tar -zxvf kubecm.tar.gz kubecm
diff --git a/docs/zh-cn/install.md b/docs/zh-cn/install.md
index 5569f27f..3f9ccefa 100644
--- a/docs/zh-cn/install.md
+++ b/docs/zh-cn/install.md
@@ -21,12 +21,13 @@ brew install sunny0826/tap/kubecm
 [![GitHub release](https://img.shields.io/github/release/sunny0826/kubecm)](https://github.com/sunny0826/kubecm/releases)
 
 ```bash
+VERSION=v0.27.1 # replace with the version you want, note the "v" prefix!
 # linux x86_64
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Linux_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Linux_x86_64.tar.gz
 # macos
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Darwin_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Darwin_x86_64.tar.gz
 # windows
-curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/v${VERSION}/kubecm_${VERSION}_Windows_x86_64.tar.gz
+curl -Lo kubecm.tar.gz https://github.com/sunny0826/kubecm/releases/download/${VERSION}/kubecm_${VERSION}_Windows_x86_64.tar.gz
 
 # linux & macos
 tar -zxvf kubecm.tar.gz kubecm