diff --git a/lib/hawat/migrations/versions/1a58ce62406a_add_detectors_table.py b/lib/hawat/migrations/versions/1a58ce62406a_add_detectors_table.py
index 242fca2291689e9e3ec1f42876b99593cc6cd293..e476c5ef1b9d9ce250639f54674373767fafd5ff 100644
--- a/lib/hawat/migrations/versions/1a58ce62406a_add_detectors_table.py
+++ b/lib/hawat/migrations/versions/1a58ce62406a_add_detectors_table.py
@@ -6,7 +6,6 @@ Create Date: 2022-08-15 09:23:47.292309
 
 """
 from alembic import op
-import sqlalchemy as sa
 
 
 # revision identifiers, used by Alembic.