diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf23f44..3f64cb0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.9.1] - 2026-02-07
+
+### Fixed
+- 🔧 修复: GanttChart管理ThemeChange的问题
+- 🔧 Fixed: Issue with ThemeChange management in GanttChart
+
 ## [1.9.0] - 2026-02-07
 
 ### Added
diff --git a/package.json b/package.json
index e95c571..153fcda 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jordium-gantt-vue3",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "type": "module",
   "main": "npm-package/dist/jordium-gantt-vue3.cjs.js",
   "module": "npm-package/dist/jordium-gantt-vue3.es.js",
diff --git a/src/components/GanttToolbar.vue b/src/components/GanttToolbar.vue
index 2dbb07d..2e38d2e 100644
--- a/src/components/GanttToolbar.vue
+++ b/src/components/GanttToolbar.vue
@@ -340,9 +340,8 @@ const handleThemeToggle = () => {
   // 立即触发主题变化事件
   if (props.onThemeChange && typeof props.onThemeChange === 'function') {
     props.onThemeChange(newTheme)
-  } else {
-    emit('theme-change', newTheme)
   }
+  emit('theme-change', newTheme)
 
   // 显示确认对话框询问是否保存设置
   pendingValue.value = newTheme
diff --git a/vite.config.ts b/vite.config.ts
index 60055ae..249db07 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -5,7 +5,7 @@ import vue from '@vitejs/plugin-vue'
 export default defineConfig(({ command }) => ({
   plugins: [vue()],
   // GitHub Pages 部署时的 base 路径
-  base: command === 'build' ? '/jordium-gantt-vue3/' : '/',
+  base: command === 'build' ? './' : '/',
   // 开发服务器配置
   root: 'demo',
   // 构建配置