diff --git a/data/data-pipeline/data_pipeline/etl/score/etl_score_post.py b/data/data-pipeline/data_pipeline/etl/score/etl_score_post.py
index 89f22601..f2f61674 100644
--- a/data/data-pipeline/data_pipeline/etl/score/etl_score_post.py
+++ b/data/data-pipeline/data_pipeline/etl/score/etl_score_post.py
@@ -206,7 +206,9 @@ class PostScoreETL(ExtractTransformLoad):
         tiles_score_column_titles = list(constants.TILES_SCORE_COLUMNS.keys())
 
         # filter the columns on full score
-        score_tiles = score_county_state_merged_df[tiles_score_column_titles]
+        score_tiles = score_county_state_merged_df[
+            tiles_score_column_titles
+        ].copy()
 
         score_tiles[constants.TILES_SCORE_FLOAT_COLUMNS] = score_tiles[
             constants.TILES_SCORE_FLOAT_COLUMNS