diff --git a/lib/matplotlib/tests/test_pickle.py b/lib/matplotlib/tests/test_pickle.py
index 24358b31cf55..e3bd7eeee185 100644
--- a/lib/matplotlib/tests/test_pickle.py
+++ b/lib/matplotlib/tests/test_pickle.py
@@ -1,6 +1,5 @@
 from io import BytesIO
 import pickle
-import platform
 
 import numpy as np
 import pytest