diff --git a/simple-mind-map/full.js b/simple-mind-map/full.js
index 68f47c64..5c107526 100644
--- a/simple-mind-map/full.js
+++ b/simple-mind-map/full.js
@@ -28,6 +28,7 @@ MindMap.iconList = icons.nodeIconList
 MindMap.constants = constants
 MindMap.themes = themes
 MindMap.defaultTheme = defaultTheme
+MindMap.version = '0.9.2'
 
 MindMap.usePlugin(MiniMap)
   .usePlugin(Watermark)
diff --git a/web/package.json b/web/package.json
index 3d017884..e39219f0 100644
--- a/web/package.json
+++ b/web/package.json
@@ -6,7 +6,7 @@
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build && node ../copy.js",
     "lint": "vue-cli-service lint",
-    "buildLibrary": "vue-cli-service build --mode library --target lib --name simpleMindMap ../simple-mind-map/full.js --dest ../simple-mind-map/dist && esbuild ../simple-mind-map/full.js --bundle --external:buffer --format=esm --outfile=../simple-mind-map/dist/simpleMindMap.esm.js && esbuild ../simple-mind-map/full.js --bundle --minify --external:buffer --format=esm --outfile=../simple-mind-map/dist/simpleMindMap.esm.min.js",
+    "buildLibrary": "node ./scripts/updateVersion.js && vue-cli-service build --mode library --target lib --name simpleMindMap ../simple-mind-map/full.js --dest ../simple-mind-map/dist && esbuild ../simple-mind-map/full.js --bundle --external:buffer --format=esm --outfile=../simple-mind-map/dist/simpleMindMap.esm.js && esbuild ../simple-mind-map/full.js --bundle --minify --external:buffer --format=esm --outfile=../simple-mind-map/dist/simpleMindMap.esm.min.js",
     "format": "prettier --write src/* src/*/* src/*/*/* src/*/*/*/*",
     "buildDoc": "node ./scripts/buildDoc.js",
     "autoBuildDoc": "node ./scripts/autoBuildDoc.js",
diff --git a/web/scripts/updateVersion.js b/web/scripts/updateVersion.js
new file mode 100644
index 00000000..c85b0b8a
--- /dev/null
+++ b/web/scripts/updateVersion.js
@@ -0,0 +1,11 @@
+const path = require('path')
+const fs = require('fs')
+const pkg = require('../../simple-mind-map/package.json')
+
+const file = path.resolve('../simple-mind-map/full.js')
+let content = fs.readFileSync(file, 'utf-8')
+content = content.replace(
+  /(MindMap.version\s*=\s*)[^\n]+(\n)/,
+  `$1'${pkg.version}'$2`
+)
+fs.writeFileSync(file, content)