diff --git a/requirements.txt b/requirements.txt
index c1087ed..915cce6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 langchain-core>=1.0.0
 langchain-openai>=1.0.0
 pydantic>=2.0.0
+python-dotenv>=0.21.0
\ No newline at end of file