diff --git a/tests/test_nodes.py b/tests/test_nodes.py
index e1281050..5404eab2 100644
--- a/tests/test_nodes.py
+++ b/tests/test_nodes.py
@@ -21,7 +21,7 @@
 )
 from wsimod.nodes.storage import Storage
 from wsimod.nodes.waste import Waste
-import os
+from pathlib import Path
 
 
 class MyTestClass(TestCase):