diff --git a/freyja/data/last_barcode_update.txt b/freyja/data/last_barcode_update.txt
index f521b81..3c66fe2 100644
--- a/freyja/data/last_barcode_update.txt
+++ b/freyja/data/last_barcode_update.txt
@@ -1 +1 @@
-12_22_2024-01-40
+12_25_2024-01-33
diff --git a/freyja/data/lineage_mutations.json b/freyja/data/lineage_mutations.json
index 17dcd39..08186d5 100644
--- a/freyja/data/lineage_mutations.json
+++ b/freyja/data/lineage_mutations.json
@@ -301120,7 +301120,7 @@
         "C28958A",
         "A29510C"
     ],
-    "XEK.1": [
+    "XEK.4": [
         "C241T",
         "C593T",
         "T670G",
@@ -301130,7 +301130,6 @@
         "G3431T",
         "C3505T",
         "T3565C",
-        "G3774A",
         "G4184A",
         "C4321T",
         "T5701C",
@@ -301216,6 +301215,7 @@
         "C23423T",
         "C23525T",
         "T23599G",
+        "C23601T",
         "C23604G",
         "C23854A",
         "G23948T",
@@ -301253,7 +301253,7 @@
         "C28958A",
         "A29510C"
     ],
-    "XEK.4": [
+    "XEK.1": [
         "C241T",
         "C593T",
         "T670G",
@@ -301263,6 +301263,7 @@
         "G3431T",
         "C3505T",
         "T3565C",
+        "G3774A",
         "G4184A",
         "C4321T",
         "T5701C",
@@ -301348,7 +301349,6 @@
         "C23423T",
         "C23525T",
         "T23599G",
-        "C23601T",
         "C23604G",
         "C23854A",
         "G23948T",
diff --git a/freyja/data/usher_barcodes.feather b/freyja/data/usher_barcodes.feather
index 7415fb9..b6ba222 100644
Binary files a/freyja/data/usher_barcodes.feather and b/freyja/data/usher_barcodes.feather differ