diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6eceee31..1ef7fd1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [5.2.1](https://github.com/kaitranntt/ccs/compare/v5.2.0...v5.2.1) (2025-12-01)
+
+
+### Bug Fixes
+
+* **cliproxy:** improve qwen oauth error handling ([#33](https://github.com/kaitranntt/ccs/issues/33)) ([1c3374f](https://github.com/kaitranntt/ccs/commit/1c3374f6a7e4440e299d49b58808c6454b4547c2)), closes [#29](https://github.com/kaitranntt/ccs/issues/29)
+
 # [5.3.0-beta.2](https://github.com/kaitranntt/ccs/compare/v5.3.0-beta.1...v5.3.0-beta.2) (2025-12-01)
 
 
diff --git a/VERSION b/VERSION
index 05cda494..26d99a28 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.3.0-beta.2
+5.2.1
diff --git a/installers/install.ps1 b/installers/install.ps1
index 406e7f4b..be14a02a 100644
--- a/installers/install.ps1
+++ b/installers/install.ps1
@@ -83,7 +83,7 @@ $InstallMethod = if ($ScriptDir -and ((Test-Path "$ScriptDir\lib\ccs.ps1") -or (
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (irm | iex)
 # For git installations, VERSION file is read if available
-$CcsVersion = "5.3.0-beta.2"
+$CcsVersion = "5.2.1"
 
 # Try to read VERSION file for git installations
 if ($ScriptDir) {
diff --git a/installers/install.sh b/installers/install.sh
index 2c859b10..6861ac20 100755
--- a/installers/install.sh
+++ b/installers/install.sh
@@ -84,7 +84,7 @@ fi
 # IMPORTANT: Update this version when releasing new versions!
 # This hardcoded version is used for standalone installations (curl | bash)
 # For git installations, VERSION file is read if available
-CCS_VERSION="5.3.0-beta.2"
+CCS_VERSION="5.2.1"
 
 # Try to read VERSION file for git installations
 if [[ -f "$SCRIPT_DIR/VERSION" ]]; then
diff --git a/package.json b/package.json
index cb9cee24..0b4060b6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "5.3.0-beta.2",
+  "version": "5.2.1",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",