diff --git a/lineage_notes.txt b/lineage_notes.txt
index c680d10b..48ad3836 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -2831,6 +2831,8 @@ GK.3	Alias of XBB.1.5.70.3, ORF1a:A876S, Brazil/USA/Canada
 GK.3.1	Alias of XBB.1.5.70.3.1, S:A475V, USA
 GK.3.2	Alias of XBB.1.5.70.3.2, S:T572I, USA, #2272
 GK.4	Alias of XBB.1.5.70.4, S:A475V, ORF1a:T2859I, ORF1ab:T4711I, from #2276
+GK.5	Alias of XBB.1.5.70.5, S:G181V, Brazil
+GK.5.1	Alias of XBB.1.5.70.5.1, S:E180K
 XBB.1.5.71	S:V511I, Spain
 XBB.1.5.72	S:F456L (T22928C), ORF1a:G445S, T9823C, T10204C, South America
 XBB.1.5.73	T28271C, USA/Peru
diff --git a/lineages.csv b/lineages.csv
index 91c3ecfe..ba9cdbc8 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2470325,3 +2470325,20 @@ USA/WA-CDC-UW23091520090/2023,XCR
 USA/FL-CDC-LC1063855/2023,XCR
 USA/CA-LACPHL-AY02517/2023,XCR
 USA/AK-CDC-UW23091496823/2023,XCR
+Brazil/RO-LACENRO-110513988/2023,GK.5
+Brazil/RO-LACENRO-110514004/2023,GK.5
+Brazil/RO-LACENRO-110507635/2023,GK.5
+Brazil/RO-LACENRO-110507638/2023,GK.5
+Japan/PG-560661/2023,GK.5.1
+Japan/PG-558033/2023,GK.5.1
+Morocco/IPM20436123/2023,GK.5.1
+USA/WA-GBW-H20-333-5193/2023,GK.5.1
+USA/CA-HLX-STM-U67N8PAEZ/2023,GK.5.1
+USA/HI-TAMC_2787/2023,GK.5.1
+USA/HI-H2323243/2023,GK.5.1
+USA/HI-H2324563/2023,GK.5.1
+USA/HI-H2324041/2023,GK.5.1
+USA/HI-H2323942/2023,GK.5.1
+USA/HI-H2324557/2023,GK.5.1
+USA/HI-H2323830/2023,GK.5.1
+USA/HI-H2325116/2023,GK.5.1