diff --git a/src/aiida/orm/nodes/data/code/installed.py b/src/aiida/orm/nodes/data/code/installed.py
index c84dea407d..8ac5fcb8b6 100644
--- a/src/aiida/orm/nodes/data/code/installed.py
+++ b/src/aiida/orm/nodes/data/code/installed.py
@@ -17,7 +17,6 @@
 from __future__ import annotations
 
 import pathlib
-import typing as t
 
 from pydantic import field_serializer, field_validator