diff --git a/requirements.txt b/requirements.txt
index 625db72..795d981 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ deepagents
 langchain>=1.2.10
 langchain-openai>=0.3.0
 langgraph>=0.2.0
-pydantic
+python-dotenv