diff --git a/backtesting/_plotting.py b/backtesting/_plotting.py
index 5e1b1a2b..844318aa 100644
--- a/backtesting/_plotting.py
+++ b/backtesting/_plotting.py
@@ -145,7 +145,7 @@ def f(s, new_index=pd.Index(df.index.view(int)), bars=trades[column]):
             if s.size:
                 # Via int64 because on pandas recently broken datetime
                 mean_time = int(bars.loc[s.index].view(int).mean())
-                new_bar_idx = new_index.get_loc(mean_time, method='nearest')
+                new_bar_idx = new_index.get_indexer([mean_time], method='nearest')[0]
                 return new_bar_idx
         return f