diff --git a/requirements.txt b/requirements.txt
index a0f22cf..79bd363 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ sqlalchemy[asyncio]>=2.0,<2.1
 asyncpg>=0.31,<0.32
 psycopg[binary]>=3.3,<3.4
 alembic>=1.18,<1.19
-pgvector>=0.4,<0.5
+pgvector>=0.5,<0.6
 
 # Task queue
 celery>=5.6,<5.7