diff --git a/migrations/versions/ef39fcd6e1cd_add_sso_account_id_in_table_users.py b/migrations/versions/ef39fcd6e1cd_add_sso_account_id_in_table_users.py
index 9e125165ae95e864c5ebf46b18157ac2172f54bc..d3b3693d424e64cea9e9fd8cb5bfc1a7bd17a9df 100644
--- a/migrations/versions/ef39fcd6e1cd_add_sso_account_id_in_table_users.py
+++ b/migrations/versions/ef39fcd6e1cd_add_sso_account_id_in_table_users.py
@@ -25,6 +25,6 @@ def upgrade():
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint(None, 'Users', type_='unique')
+    op.drop_constraint('SSOAccountID', 'Users', type_='unique')
     op.drop_column('Users', 'SSOAccountID')
     # ### end Alembic commands ###