diff --git a/pyfolio/tests/test_pos.py b/pyfolio/tests/test_pos.py
index 8bb3a4af..81f08d25 100644
--- a/pyfolio/tests/test_pos.py
+++ b/pyfolio/tests/test_pos.py
@@ -7,8 +7,7 @@
     date_range,
     Timestamp
 )
-from pandas.util.testing import (assert_frame_equal,
-                                 assert_series_equal)
+from pandas.util.testing import (assert_frame_equal)
 from numpy import (
     absolute,
     arange,