diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 4f5361d5..8c65b729 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -2,7 +2,7 @@
 name = "mirofish-backend"
 version = "0.1.0"
 description = "MiroFish - 简洁通用的群体智能引擎，预测万物"
-requires-python = ">=3.11"
+requires-python = ">=3.11,<3.13"
 license = { text = "AGPL-3.0" }
 authors = [
     { name = "MiroFish Team" }