diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 4ac10e32..19a770a3 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -2,7 +2,7 @@
 name = "sqlbot"
 version = "0.1.0"
 description = ""
-requires-python = ">=3.10,<4.0"
+requires-python = ">=3.10,<3.13"
 dependencies = [
     "fastapi[standard]<1.0.0,>=0.114.2",
     "python-multipart<1.0.0,>=0.0.7",
@@ -25,8 +25,9 @@ dependencies = [
     "langchain-community>=0.0.19,<0.1.0",
     "vllm>=0.8.5",
     "dashscope>=1.14.0,<2.0.0",
-    "sse-starlette>=1.8.0,<2.0.0"
+    "sse-starlette>=1.8.0,<2.0.0",
     "pymysql (>=1.1.1,<2.0.0)",
+    "cryptography (>=44.0.3,<45.0.0)",
 ]
 [[tool.uv.index]]
 url = "https://pypi.tuna.tsinghua.edu.cn/simple"
@@ -42,6 +43,11 @@ dev-dependencies = [
     "coverage<8.0.0,>=7.4.3",
 ]
 
+[[tool.poetry.source]]
+name = "mirrors"
+url = "http://mirrors.aliyun.com/pypi/simple"
+priority = "primary"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"