diff --git a/.gitignore b/.gitignore
index 4ebf99e3..aa0b6da2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ eval_results/
 eval_data/
 *.egg-info/
 .env
+.idea
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 4b5793d1..2d85ee37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ name = "tradingagents"
 version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.10,<4.0"
 dependencies = [
     "akshare>=1.16.98",
     "backtrader>=1.9.78.123",