diff --git a/technical/util.py b/technical/util.py
index b93c8c97..6bf6a3b7 100644
--- a/technical/util.py
+++ b/technical/util.py
@@ -105,7 +105,7 @@ def resampled_merge(original: DataFrame, resampled: DataFrame, fill_na=True):
     dataframe = dataframe.drop(f"resample_{resampled_int}_date_merge", axis=1)
 
     if fill_na:
-        dataframe.fillna(method="ffill", inplace=True)
+        dataframe = dataframe.ffill()
 
     return dataframe