diff --git a/template/config/version.js b/template/config/version.js
new file mode 100644
index 0000000..4b30e99
--- /dev/null
+++ b/template/config/version.js
@@ -0,0 +1,11 @@
+const fs = require('fs')
+const pack = require('../package.json')
+
+// update installation.md
+const installation = fs
+  .readFileSync('./gitbook/installation.md', 'utf-8')
+  .replace(
+    /<script src="https:\/\/unpkg\.com\/{{ name }}@[\d.]+.[\d]+\/dist\/{{ name }}\.min\.js"><\/script>/,
+    '<script src="https://unpkg.com/{{ name }}@' + pack.version + '/dist/{{ name }}.min.js"></script>'
+  )
+fs.writeFileSync('./gitbook/installation.md', installation)
diff --git a/template/gitbook/en/installation.md b/template/gitbook/en/installation.md
index 8cad837..f3a65df 100644
--- a/template/gitbook/en/installation.md
+++ b/template/gitbook/en/installation.md
@@ -1,5 +1,11 @@
 # Installation
 
+### CDN
+unpkg
+```html
+<script src="https://unpkg.com/{{ name }}@{{ version }}/dist/{{ name }}.min.js"></script>
+```
+
 {{#unless_eq githubAccount ""}}
 ## Direct Download