diff --git a/gns3server/schemas/compute/atm_switch_nodes.py b/gns3server/schemas/compute/atm_switch_nodes.py
index 9a9db0845..9d126bfe9 100644
--- a/gns3server/schemas/compute/atm_switch_nodes.py
+++ b/gns3server/schemas/compute/atm_switch_nodes.py
@@ -26,8 +26,8 @@ class ATMSwitchBase(BaseModel):
     Common ATM switch properties.
     """
 
-    name: str = None
-    node_id: UUID = None
+    name: Optional[str] = None
+    node_id: Optional[UUID] = None
     usage: Optional[str] = None
     mappings: Optional[dict] = None
 
diff --git a/pyproject.toml b/pyproject.toml
index 258447eb6..093342909 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -374,13 +374,10 @@ module = [
   "gns3server.db.repositories.templates",  # 6
   "gns3server.db.repositories.users",  # 12
   "gns3server.db.tasks",  # 12
-  "gns3server.schemas.compute.atm_switch_nodes",  # 5
   "gns3server.schemas.compute.cloud_nodes",  # 1
   "gns3server.schemas.compute.docker_nodes",  # 2
-  "gns3server.schemas.compute.dynamips_nodes",  # 1
   "gns3server.schemas.compute.frame_relay_switch_nodes",  # 5
   "gns3server.schemas.compute.iou_nodes",  # 3
-  "gns3server.schemas.compute.nat_nodes",  # 1
   "gns3server.schemas.compute.qemu_nodes",  # 1
   "gns3server.schemas.compute.virtualbox_nodes",  # 2
   "gns3server.schemas.compute.vmware_nodes",  # 3