diff --git a/test/test_stat_tools.py b/test/test_stat_tools.py
index f2d1601..1027f10 100644
--- a/test/test_stat_tools.py
+++ b/test/test_stat_tools.py
@@ -17,7 +17,7 @@
     zscore_from_cb,
     zscore_from_pval,
     aggregate_medians,
-    aggregate_quantiles
+    aggregate_quantiles,
 )