diff --git a/CHANGELOG.md b/CHANGELOG.md
index 803f6ef..88975a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,21 @@
 
 # Changelog
 
+## [1.0.21]
+
+### Added
+
+- Added support for ListRoots protocol and optimized DATA_DIR configuration method (99baa0f)
+- Added WEB_PORT environment variable to customize WebGUI port number (8771a5b)
+
+### Changed
+
+- Updated documentation to reflect new configuration options (99baa0f, 8771a5b)
+
+### Fixed
+
+- Fix #56: Added configurable WebGUI port to avoid port conflicts (8771a5b)
+
 ## [1.0.20]
 
 ### Added
diff --git a/docs/zh/CHANGELOG.md b/docs/zh/CHANGELOG.md
index 150ccfd..725f0f3 100644
--- a/docs/zh/CHANGELOG.md
+++ b/docs/zh/CHANGELOG.md
@@ -2,6 +2,21 @@
 
 # 更新日誌
 
+## [1.0.21]
+
+### 新增
+
+- 新增對 ListRoots 協議的支援，優化 DATA_DIR 配置方式 (99baa0f)
+- 新增 WEB_PORT 環境變數以自訂 WebGUI 埠號 (8771a5b)
+
+### 變更
+
+- 更新相關文檔說明以反映新的配置選項 (99baa0f, 8771a5b)
+
+### 修復
+
+- 修復 #56：新增可配置的 WebGUI 埠號以避免埠號衝突 (8771a5b)
+
 ## [1.0.20]
 
 ### 新增
diff --git a/package.json b/package.json
index d27c799..1088053 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mcp-shrimp-task-manager",
-  "version": "1.0.20",
+  "version": "1.0.21",
   "description": "Shrimp Task Manager is a task tool built for AI Agents, emphasizing chain-of-thought, reflection, and style consistency. It converts natural language into structured dev tasks with dependency tracking and iterative refinement, enabling agent-like developer behavior in reasoning AI systems",
   "main": "dist/index.js",
   "type": "module",