diff --git a/src/npc_lims/scripts/process_queue.py b/src/npc_lims/scripts/process_queue.py
index e5e7956..b1d792e 100644
--- a/src/npc_lims/scripts/process_queue.py
+++ b/src/npc_lims/scripts/process_queue.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import npc_lims
 import argparse
 from typing import Literal