diff --git a/requirements.txt b/requirements.txt
index 1939613..2a474fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 langchain==1.2.10
-langchain-openai==1.1.9
\ No newline at end of file
+langchain-openai==1.1.9
+pydantic==2.7.1
\ No newline at end of file