diff --git a/package-lock.json b/package-lock.json
index a682025..7b62b52 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "dingtalk-approval-mcp",
-  "version": "1.1.0-rc.19",
+  "version": "1.1.0-rc.20",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "dingtalk-approval-mcp",
-      "version": "1.1.0-rc.19",
+      "version": "1.1.0-rc.20",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.30.0",
         "express": "^5.2.1",
diff --git a/package.json b/package.json
index bfa68f6..39633cd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dingtalk-approval-mcp",
-  "version": "1.1.0-rc.19",
+  "version": "1.1.0-rc.20",
   "description": "A lightweight Agent bridge for a unified DingTalk OA and XFT approval gateway.",
   "private": true,
   "type": "module",
diff --git a/src/version.ts b/src/version.ts
index 1c03afe..74002fd 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const APPLICATION_VERSION = "1.1.0-rc.19";
+export const APPLICATION_VERSION = "1.1.0-rc.20";