diff --git a/api/requirements.txt b/api/requirements.txt
index f7884e0..08049ba 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -2,7 +2,7 @@ fastapi>=0.140.7
 uvicorn[standard]>=0.51.0
 psycopg2-binary>=2.9
 python-multipart>=0.0.9
-pydantic>=2.7
+pydantic>=2.13.4
 # BUG-032: schema migrations for csv_uploads.* — auto-runs at API startup
 # via alembic upgrade head (see api/db.py bootstrap and alembic/ directory).
 alembic>=1.13.0