diff --git a/CMakeLists.txt b/CMakeLists.txt
index b7aac1b..0bf8c0e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ endif()
 
 project(
   lebai
-  VERSION 1.1.30
+  VERSION 1.1.31
   LANGUAGES CXX)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
diff --git a/Doxyfile b/Doxyfile
index 7acf033..c8b6568 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "lebai sdk"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.1.30
+PROJECT_NUMBER         = 1.1.31
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/changelog.md b/doc/changelog.md
index 2745592..3d779c7 100644
--- a/doc/changelog.md
+++ b/doc/changelog.md
@@ -1,4 +1,6 @@
 # ChangeLog
+## 1.1.31
+python镜像升级
 
 ## 1.1.30
 修正ci中的错误