diff --git a/heat/db/sqlalchemy/api.py b/heat/db/sqlalchemy/api.py
index 619ca7cc24..4b719d8de7 100644
--- a/heat/db/sqlalchemy/api.py
+++ b/heat/db/sqlalchemy/api.py
@@ -537,7 +537,7 @@ def resource_get_all_active_by_stack(context, stack_id):
 
     results = context.session.query(models.Resource).filter_by(
         stack_id=stack_id).filter(
-        models.Resource.id.notin_(subquery.as_scalar())
+        models.Resource.id.notin_(subquery.scalar_subquery())
     ).options(orm.joinedload("data")).all()
 
     return dict((res.id, res) for res in results)
diff --git a/requirements.txt b/requirements.txt
index 457724754b..f891741e46 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -65,7 +65,7 @@ PyYAML>=5.1 # MIT
 requests>=2.23.0 # Apache-2.0
 tenacity>=6.1.0 # Apache-2.0
 Routes>=2.3.1 # MIT
-SQLAlchemy!=1.1.5,!=1.1.6,!=1.1.7,!=1.1.8,>=1.0.10 # MIT
+SQLAlchemy>=1.4.0 # MIT
 sqlalchemy-migrate>=0.13.0 # Apache-2.0
 stevedore>=3.1.0 # Apache-2.0
 WebOb>=1.7.1 # MIT