diff --git a/qgrid/grid.py b/qgrid/grid.py
index 44887b25..ac0947c6 100644
--- a/qgrid/grid.py
+++ b/qgrid/grid.py
@@ -1707,8 +1707,8 @@ def edit_cell(self, index, column, value):
             The new value for the cell.
         """
         old_value = self._df.loc[index, column]
-        self._df.loc[index, column] = value
-        self._unfiltered_df.loc[index, column] = value
+        self._df.at[index, column] = value
+        self._unfiltered_df.at[index, column] = value
         self._update_table(triggered_by='edit_cell',
                            fire_data_change_event=True)