diff --git a/data/processed/test_data.csv b/data/processed/test_data.csv
index 808e107..0d08229 100644
--- a/data/processed/test_data.csv
+++ b/data/processed/test_data.csv
@@ -1,4 +1,4 @@
-,V1,V2,V3,V4,Class
+,since_last_don,total_dons,total_blood,since_first_don,Class
 138,9,5,1250,19,1
 511,2,11,2750,26,1
 427,14,5,1250,74,1
diff --git a/data/processed/train_data.csv b/data/processed/train_data.csv
index ca26750..43a3fe6 100644
--- a/data/processed/train_data.csv
+++ b/data/processed/train_data.csv
@@ -1,4 +1,4 @@
-,V1,V2,V3,V4,Class
+,since_last_don,total_dons,total_blood,since_first_don,Class
 239,8,9,2250,58,1
 269,13,4,1000,21,1
 151,4,6,1500,39,1