diff --git a/pybench/utils.py b/pybench/utils.py
index 53eeef8..b665455 100644
--- a/pybench/utils.py
+++ b/pybench/utils.py
@@ -197,7 +197,7 @@ def split_params_list(df, params_name, columns=None):
     >>>     ["params.shape.0", "params.shape.1"])
     >>> split_params_list(df, "params.shape", ["shape0", "shape1"])
     """
-    lst = df[params_name].to_list()
+    lst = df[params_name].tolist()
     lst = [[l] if not isinstance(l, list) else l for l in lst]
     ncols = max([len(l) for l in lst])
     if columns is None: