diff --git a/python/bench/__main__.py b/python/bench/__main__.py
index 22d49ee9e..c7c5c86ac 100644
--- a/python/bench/__main__.py
+++ b/python/bench/__main__.py
@@ -28,7 +28,7 @@ def __init__(self):
     (
         "create_20_000_run_trees",
         create_run_trees,
-        10_000,
+        20_000,
     ),
     (
         "dumps_class_nested_py_branch_and_leaf_200x400",