diff --git a/backend/requirements.txt b/backend/requirements.txt
index 6233792..6f02b88 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -16,6 +16,7 @@ idna==3.10
 openai==1.58.1
 packaging==24.1
 pydantic==2.9.2
+pydantic_core==2.34.1
 pydantic_core==2.27.2
 python-dotenv==1.1.0
 requests==2.32.3