diff --git a/tests/data/csv/Denton-Justin_RL_Flow.csv b/tests/data/csv/Denton-Justin_RL_Flow.csv
index 7595d45..ad9c4a9 100644
--- a/tests/data/csv/Denton-Justin_RL_Flow.csv
+++ b/tests/data/csv/Denton-Justin_RL_Flow.csv
@@ -1,4 +1,4 @@
-refln_id,Date,refln_name,Flow
+refln_id,time,refln_name,Flow
 0,2015-10-22 23:45:00,Denton-Justin_RL,1.9600000381469727
 0,2015-10-23 00:00:00,Denton-Justin_RL,1.9600000381469727
 0,2015-10-23 00:15:00,Denton-Justin_RL,1.7999999523162842
diff --git a/tests/data/csv/Grapevine_Lake_RP_Stage.csv b/tests/data/csv/Grapevine_Lake_RP_Stage.csv
index 0c170b6..6055194 100644
--- a/tests/data/csv/Grapevine_Lake_RP_Stage.csv
+++ b/tests/data/csv/Grapevine_Lake_RP_Stage.csv
@@ -1,4 +1,4 @@
-refpt_id,Date,refpt_name,Stage
+refpt_id,time,refpt_name,Stage
 1,2015-10-22 23:00:00,Grapevine_Lake_RP,534.6328735351562
 1,2015-10-23 00:00:00,Grapevine_Lake_RP,534.6582641601562
 1,2015-10-23 01:00:00,Grapevine_Lake_RP,534.7096557617188