diff --git a/deal-flow-agent/requirements.txt b/deal-flow-agent/requirements.txt
index e50612e4..feb3afb4 100644
--- a/deal-flow-agent/requirements.txt
+++ b/deal-flow-agent/requirements.txt
@@ -4,7 +4,7 @@ pydantic==2.10.3
 pydantic-settings==2.6.1
 sqlalchemy==2.0.36
 asyncpg==0.30.0
-pgvector==0.3.6
+pgvector==0.4.2
 alembic==1.14.0
 anthropic==0.40.0
 openai==1.57.2