diff --git a/lineage_notes.txt b/lineage_notes.txt
index 3ddeb93b..c28d676a 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -3299,6 +3299,7 @@ XCF.1	S:F157L, USA, from sars-cov-2-variants/lineage-proposals#274
 XCF.2	S:S929I, Canada
 XCG	Recombinant lineage of BA.5.2* and XBB.1, Mexico
 XCH	Recombinant lineage of GK.1.3 and XBB.1.9 (or XBB.1.16), GK.1.3 Spike with ORF9b:I5T from donor, from #2173
+XCJ	Recombinant lineage of GM.2 with a little FP.1 (XBB.1.11.1.1) sandwich inserted in ORF1ab, from lineage-proposals#609
 *A.2.1	Withdrawn: Lineage with sequences predominantly from Panama
 *A.8	Withdrawn: Indian lineage merged with A.9
 *A.10	Withdrawn: Spanish lineage reassigned to A.5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 bacc5737..d07d04ca 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2412599,19 +2412599,6 @@ Singapore/R7NP47/2023,GM.2
 Shanghai/SCDC-HG-0522-988/2023,GM.2
 CHN/HG20230522-988/2023,GM.2
 Singapore/R24MR489/2023,GM.2
-Singapore/R30MR197/2023,GM.2
-Singapore/R30MR204/2023,GM.2
-Singapore/R35MR232/2023,GM.2
-Singapore/R34MR158/2023,GM.2
-Singapore/R26MR30/2023,GM.2
-Singapore/R32MR119/2023,GM.2
-Singapore/R30MR200/2023,GM.2
-Singapore/R26MR13/2023,GM.2
-Singapore/R26MR31/2023,GM.2
-Singapore/R33MR139/2023,GM.2
-Singapore/R31MR180/2023,GM.2
-Singapore/R34MR33/2023,GM.2
-Singapore/R33MR165/2023,GM.2
 Singapore/R21MR476/2023,GM.1
 Singapore/NPHL-R22MR458/2023,GM.1
 Singapore/NPHL-R22MR387/2023,GM.1
@@ -2457255,3 +2457242,32 @@ Hubei/HCDC-JZ2412/2023,HK.3.1
 Hubei/HCDC-JZ2419/2023,HK.3.1
 CHN/HB-Jingzhou-2412/2023,HK.3.1
 CHN/HB-Jingzhou-2419/2023,HK.3.1
+Singapore/R30MR197/2023,XCJ
+Singapore/R30MR204/2023,XCJ
+Singapore/R35MR232/2023,XCJ
+Singapore/R34MR158/2023,XCJ
+Singapore/R37MR129/2023,XCJ
+Singapore/R26MR30/2023,XCJ
+Singapore/R37MR84/2023,XCJ
+Singapore/R32MR119/2023,XCJ
+Singapore/R30MR200/2023,XCJ
+Singapore/R26MR13/2023,XCJ
+Singapore/R26MR31/2023,XCJ
+Singapore/R33MR139/2023,XCJ
+Singapore/R31MR180/2023,XCJ
+HongKong/VB23126930/2023,XCJ
+Singapore/R34MR33/2023,XCJ
+Singapore/R33MR165/2023,XCJ
+USA/CA-CDPH-500117920/2023,XCJ
+USA/CA-CDC-VSX-A348994/2023,XCJ
+Canada/ON-PHL-23-27999/2023,XCJ
+Canada/ON-PHL-23-27960/2023,XCJ
+Canada/ON-PHL-23-27996/2023,XCJ
+Canada/ON-PHL-23-27992/2023,XCJ
+Canada/ON-PHL-23-28006/2023,XCJ
+Canada/ON-PHL-23-28076/2023,XCJ
+Canada/ON-PHL-23-28074/2023,XCJ
+Canada/ON-PHL-23-27997/2023,XCJ
+Canada/ON-PHL-23-27998/2023,XCJ
+Canada/ON-PHL-23-28030/2023,XCJ
+Canada/ON-PHL-23-27995/2023,XCJ
diff --git a/pango_designation/alias_key.json b/pango_designation/alias_key.json
index bef54793..d4ad1e88 100644
--- a/pango_designation/alias_key.json
+++ b/pango_designation/alias_key.json
@@ -282,6 +282,7 @@
     "XCE": ["BQ.1*","FY.1"],
     "XCF": ["XBB*","FE.1"],
     "XCG": ["BA.5.2*","XBB.1"],
-    "XCH": ["GK.1.3","XBB.1.9*"]
+    "XCH": ["GK.1.3","XBB.1.9*","GK.1.3"],
+    "XCJ": ["GM.2","FP.1","GM.2"]
 }