diff --git a/pyproject.toml b/pyproject.toml
index 39b0d030..7da99ff3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 ]
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = ">=3.9, <3.12"
 langchain = "0.1.15"
 langchain-openai = "^0.1.6"
 langchain-google-genai = "^1.0.3"