diff --git a/retrieval_service/requirements.txt b/retrieval_service/requirements.txt
index 9cdbc1ae1..ac2a81dd5 100644
--- a/retrieval_service/requirements.txt
+++ b/retrieval_service/requirements.txt
@@ -4,7 +4,7 @@ google-cloud-firestore==2.14.0
 google-cloud-aiplatform==1.41.0
 langchain==0.1.5
 pgvector==0.2.5
-pydantic==2.5.3
+pydantic==2.6.1
 uvicorn[standard]==0.27.0.post1
 cloud-sql-python-connector==1.6.0
 sqlalchemy==2.0.25