diff --git a/data/seaice-daily-north.csv b/data/seaice-daily-north.csv
index 3399a7f..ff75c78 100644
--- a/data/seaice-daily-north.csv
+++ b/data/seaice-daily-north.csv
@@ -14848,3 +14848,4 @@ north,2024-01-28,27,14.088
 north,2024-01-29,28,14.144
 north,2024-01-30,29,14.126
 north,2024-01-31,30,14.143
+north,2024-02-01,31,14.222
diff --git a/data/seaice-daily-south.csv b/data/seaice-daily-south.csv
index d97a87b..79a59bc 100644
--- a/data/seaice-daily-south.csv
+++ b/data/seaice-daily-south.csv
@@ -14848,3 +14848,4 @@ south,2024-01-28,27,2.679
 south,2024-01-29,28,2.582
 south,2024-01-30,29,2.48
 south,2024-01-31,30,2.428
+south,2024-02-01,31,2.347
diff --git a/data/seaice-thisyear-north.csv b/data/seaice-thisyear-north.csv
index c7b2185..5f48948 100644
--- a/data/seaice-thisyear-north.csv
+++ b/data/seaice-thisyear-north.csv
@@ -30,3 +30,4 @@ north,2024-01-28,27,14.088
 north,2024-01-29,28,14.144
 north,2024-01-30,29,14.126
 north,2024-01-31,30,14.143
+north,2024-02-01,31,14.222
diff --git a/data/seaice-thisyear-south.csv b/data/seaice-thisyear-south.csv
index 83f13b3..030f275 100644
--- a/data/seaice-thisyear-south.csv
+++ b/data/seaice-thisyear-south.csv
@@ -30,3 +30,4 @@ south,2024-01-28,27,2.679
 south,2024-01-29,28,2.582
 south,2024-01-30,29,2.48
 south,2024-01-31,30,2.428
+south,2024-02-01,31,2.347