diff --git a/tests/v3/test_buffer.py b/tests/v3/test_buffer.py
index 06c0714333..5a313dc1ab 100644
--- a/tests/v3/test_buffer.py
+++ b/tests/v3/test_buffer.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-import types
+from typing import TYPE_CHECKING
 
 import numpy as np
 import pytest
@@ -23,6 +23,9 @@
 )
 from zarr.testing.utils import gpu_test
 
+if TYPE_CHECKING:
+    import types
+
 try:
     import cupy as cp
 except ImportError: