diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 2f84a02d5..f58d5e69e 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -53,7 +53,7 @@ services:
 
   backend:
     container_name: bisheng-backend
-    image: dataelement/bisheng-backend:v1.1.1
+    image: dataelement/bisheng-backend:v1.2.0
     ports:
       - "7860:7860"
     environment:
@@ -93,7 +93,7 @@ services:
 
   frontend:
     container_name: bisheng-frontend
-    image: dataelement/bisheng-frontend:v1.1.1
+    image: dataelement/bisheng-frontend:v1.2.0
     ports:
       - "3001:3001"
     environment:
diff --git a/src/backend/bisheng/__init__.py b/src/backend/bisheng/__init__.py
index eeb626383..141c89f08 100644
--- a/src/backend/bisheng/__init__.py
+++ b/src/backend/bisheng/__init__.py
@@ -6,7 +6,7 @@ from bisheng.processing.process import load_flow_from_json  # noqa: E402
 
 try:
     # 通过ci去自动修改
-    __version__ = '1.1.1'
+    __version__ = '1.2.0'
 except metadata.PackageNotFoundError:
     # Case where package metadata is not available.
     __version__ = ''
diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index 96af0f0cb..9d88a4d31 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -19,7 +19,7 @@ bisheng = "bisheng.__main__:main"
 
 [tool.poetry.dependencies]
 python = ">=3.10,<3.11"
-bisheng_langchain = "1.2.0.dev1"
+bisheng_langchain = "1.2.0"
 bisheng_pyautogen = "0.3.2"
 langchain = "^0.3.23"
 langchain-community = "^0.3.21"
diff --git a/update.sh b/update.sh
index a147627e4..df770f267 100644
--- a/update.sh
+++ b/update.sh
@@ -1,7 +1,7 @@
 #! /bin/bash
 
-old_version="1.1.0"
-new_version="1.1.1"
-sed -i "s/$old_version/$new_version/g" ./docker/docker-compose.yml
-sed -i "s/$old_version/$new_version/g" ./src/backend/pyproject.toml
-sed -i "s/$old_version/$new_version/g" ./src/backend/bisheng/__init__.py
+old_version="1.1.1"
+new_version="1.2.0"
+sed -i .bak "s/$old_version/$new_version/g" ./docker/docker-compose.yml
+sed -i .bak "s/$old_version/$new_version/g" ./src/backend/pyproject.toml
+sed -i .bak "s/$old_version/$new_version/g" ./src/backend/bisheng/__init__.py