diff --git a/nannyml/runner.py b/nannyml/runner.py
index 0471f3cc..21221dbb 100644
--- a/nannyml/runner.py
+++ b/nannyml/runner.py
@@ -27,8 +27,8 @@
 from nannyml.stats.avg.calculator import SummaryStatsAvgCalculator
 from nannyml.stats.count.calculator import SummaryStatsRowCountCalculator
 from nannyml.stats.median.calculator import SummaryStatsMedianCalculator
-from nannyml.stats.sum.calculator import SummaryStatsSumCalculator
 from nannyml.stats.std.calculator import SummaryStatsStdCalculator
+from nannyml.stats.sum.calculator import SummaryStatsSumCalculator
 
 
 @dataclass