diff --git a/lineage_notes.txt b/lineage_notes.txt
index 9df3ffd1..af7513a3 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -2645,6 +2645,7 @@ XBQ	Recombinant lineage of BA.5.2 and CJ.1, defined by ORF1b:M454I, England and
 XBR	Recombinant lineage of BA.2.75* and BQ.1 (with S:R346T), England, Canada, USA, from issue #1637
 XBS	Recombinant lineage of BA.2.75* and BQ.1 (with S:R346T), England, from issue #1567
 XBT	Recombinant lineage of BA.5.2.34, BA.2.75, BA.5.2.34, Germany, from issue #1576
+XBU	Recombinant lineage of BA.2.75.3, BQ.1, BA.2.75.3, from issue #1425
 *A.2.1	Withdrawn: Lineage with sequences predominantly from Panama
 *A.8	Withdrawn: Indian lineage merged with A.9
 *A.10	Withdrawn: Spanish lineage reassigned to A.5
diff --git a/lineages.csv b/lineages.csv
index 7281754e..2736147f 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2234417,7 +2234417,6 @@ Brazil/SP-IB_CEVC_2204638/2022,XBB.1.18.1
 Brazil/SP-IB_CEVC_2204960/2022,XBB.1.18.1
 Brazil/SP-IB_CEVC_2204959/2022,XBB.1.18.1
 Brazil/SP-IB_CEVC_2204538/2022,XBB.1.18.1
-strain,XBB.1.5.24
 Germany/NI-RKI-I-1115249/2023,XBB.1.5.24
 England/PHEC-YYEKENA/2023,XBB.1.5.24
 Netherlands/GE-RIVM-127229/2023,XBB.1.5.24
@@ -2235328,4 +2235327,49 @@ SouthAfrica/CERI-KRISP-K053770/2023,XBB.1.5.25
 SouthAfrica/CERI-KRISP-K052955/2023,XBB.1.5.25
 SouthAfrica/CERI-KRISP-K053825/2023,XBB.1.5.25
 SouthAfrica/CERI-KRISP-K052953/2023,XBB.1.5.25
+Thailand/DMSc-14433/2022,XBU
+Malaysia/IMR_OS7668/2022,XBU
+Malaysia/IMR_LF01041/2022,XBU
+Spain/CL-39635/2022,XBU
+Germany/BE-ChVir40758/2022,XBU
+Australia/NSW-ICPMR-38091/2022,XBU
+Netherlands/NH-RIVM-120293/2022,XBU
+Thailand/MTM_01_596/2022,XBU
+Malaysia/TIDREC-NSC2511/2022,XBU
+USA/VA-VTVAS3-GSC41417/2023,XBU
+Thailand/NIC_PBI_648/2023,XBU
+Australia/ACT9410/2022,XBU
+Malaysia/USM_Monash_JKNK_M191_50066/2022,XBU
+Thailand/CONI-3887/2022,XBU
+Thailand/DMSc-14800/2022,XBU
+Germany/SH-RKI-I-1112407/2023,XBU
+Germany/HH-RKI-I-1097234/2023,XBU
+New_Zealand/23ZA0587/2023,XBU
+NewZealand/23ZA0587/2023,XBU
+New_Zealand/23XA0802/2023,XBU
+NewZealand/23XA0802/2023,XBU
+Israel/CVL-8013486/2023,XBU
+Ireland/D-FAW32337_05/2023,XBU
+England/QEUH-326E8E6F/2023,XBU
+England/PHEC-YYEGB9C/2023,XBU
+Israel/SMC-7111987/2023,XBU
+Japan/PG-402354/2022,XBU
+Japan/PG-400471/2022,XBU
+Japan/PG-429055/2022,XBU
+Japan/PG-400534/2022,XBU
+Japan/PG-404973/2022,XBU
+Japan/PG-404889/2022,XBU
+Malaysia/IMR_OS7770/2022,XBU
+Malaysia/IMR_OS7589/2022,XBU
+Spain/IB-HUSE-07644/2023,XBU
+Scotland/SCOT-26465/2023,XBU
+Malaysia/C19UMB3686/2022,XBU
+Malaysia/IMR_CV05237/2022,XBU
+Singapore/16654/2022,XBU
+Italy/LAZ-FPG-1049/2023,XBU
+Singapore/17317/2022,XBU
+England/QEUH-326CE403/2023,XBU
+USA/MD-CDC-QDX46944505/2023,XBU
+USA/CA-CDC-QDX47214849/2023,XBU
+Taiwan/CDC-F78577/2023,XBU
 
diff --git a/pango_designation/alias_key.json b/pango_designation/alias_key.json
index f81ca274..b6587e60 100644
--- a/pango_designation/alias_key.json
+++ b/pango_designation/alias_key.json
@@ -189,5 +189,6 @@
     "XBQ": ["BA.5.2","CJ.1"],
     "XBR": ["BA.2.75","BQ.1"],
     "XBS": ["BA.2.75","BQ.1"],
-    "XBT": ["BA.5.2.34","BA.2.75","BA.5.2.34"]
+    "XBT": ["BA.5.2.34","BA.2.75","BA.5.2.34"],
+    "XBU": ["BA.2.75.3","BQ.1","BA.2.75.3"]
 }