diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6acc77..4053e1c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.25.0)
 
 project(DDM
-    VERSION 0.2.0
+    VERSION 0.3.1
     LANGUAGES CXX C)
 
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
@@ -11,11 +11,7 @@ set(CMAKE_AUTORCC ON)
 SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
 
 # Set version
-set(DDM_VERSION_MAJOR 0)
-set(DDM_VERSION_MINOR 20)
-set(DDM_VERSION_PATCH 0)
-set(DDM_VERSION_STRING "${DDM_VERSION_MAJOR}.${DDM_VERSION_MINOR}.${DDM_VERSION_PATCH}")
-add_compile_definitions("DDM_VERSION=\"${DDM_VERSION_STRING}\"")
+add_compile_definitions("DDM_VERSION=\"${DDM_VERSION}\"")
 
 # Standard installation paths
 include(GNUInstallDirs)
@@ -72,7 +68,7 @@ pkg_check_modules(Systemd REQUIRED systemd)
 pkg_check_modules(LIBXAU REQUIRED "xau")
 
 # TreelandProtocols
-find_package(TreelandProtocols 0.5.0  REQUIRED)
+find_package(TreelandProtocols 0.5.3  REQUIRED)
 
 find_package(Qt6 CONFIG REQUIRED Core DBus Gui Qml Quick QuickControls2 LinguistTools Test QuickTest)
 qt_standard_project_setup(REQUIRES 6.6)
@@ -192,7 +188,7 @@ configure_package_config_file(
 # Configure version file
 write_basic_package_version_file(
     "${CMAKE_CURRENT_BINARY_DIR}/data/DDMConfigVersion.cmake"
-    VERSION ${DDM_VERSION_STRING}
+    VERSION ${DDM_VERSION}
     COMPATIBILITY SameMajorVersion
 )
 
diff --git a/data/DDMConfig.cmake.in b/data/DDMConfig.cmake.in
index 2a47273..05fecc5 100644
--- a/data/DDMConfig.cmake.in
+++ b/data/DDMConfig.cmake.in
@@ -4,7 +4,7 @@
 set(DDM_VERSION_MAJOR @DDM_VERSION_MAJOR@)
 set(DDM_VERSION_MINOR @DDM_VERSION_MINOR@)
 set(DDM_VERSION_PATCH @DDM_VERSION_PATCH@)
-set(DDM_VERSION @DDM_VERSION_STRING@)
+set(DDM_VERSION @DDM_VERSION@)
 
 # 导入 Auth 和 Common 模块的配置文件
 include("${CMAKE_CURRENT_LIST_DIR}/CommonConfig.cmake")
diff --git a/data/man/ddm-state.conf.rst.in b/data/man/ddm-state.conf.rst.in
index 1814131..6e695e7 100644
--- a/data/man/ddm-state.conf.rst.in
+++ b/data/man/ddm-state.conf.rst.in
@@ -7,7 +7,7 @@ ddm configuration
 -----------------
 
 :Date: Dec 2025
-:Version: ddm @DDM_VERSION_STRING@
+:Version: ddm @DDM_VERSION@
 :Manual section: 5
 :Manual group: ddm
 
diff --git a/data/man/ddm.conf.rst.in b/data/man/ddm.conf.rst.in
index 326fe89..33d0055 100644
--- a/data/man/ddm.conf.rst.in
+++ b/data/man/ddm.conf.rst.in
@@ -7,7 +7,7 @@ ddm display manager configuration
 ----------------------------------
 
 :Date: Dec 2025
-:Version: ddm @DDM_VERSION_STRING@
+:Version: ddm @DDM_VERSION@
 :Manual section: 5
 :Manual group: ddm
 
diff --git a/data/man/ddm.rst.in b/data/man/ddm.rst.in
index 4b06981..cebc5d0 100644
--- a/data/man/ddm.rst.in
+++ b/data/man/ddm.rst.in
@@ -7,7 +7,7 @@ DDM
 ---
 
 :Date: Dec 2025
-:Version: ddm @DDM_VERSION_STRING@
+:Version: ddm @DDM_VERSION@
 :Manual section: 1
 :Manual group: ddm
 
diff --git a/debian/changelog b/debian/changelog
index 1c7dbae..02a1084 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+ddm (0.3.1) unstable; urgency=medium
+
+  * fix: fix cannot login more than 1 user
+  * fix: fix treeland-protocol name
+  * fix: fix user cannot login after logout once
+
+ -- rewine <luhongxu@uniontech.com>  Thu, 15 Jan 2026 10:58:46 +0800
+
 ddm (0.3.0) unstable; urgency=medium
 
   * fix: fix flash black on login