diff --git a/ucd-list-deprecated.txt b/ucd-list-deprecated.txt
index c8f06b2..5dcc8a5 100644
--- a/ucd-list-deprecated.txt
+++ b/ucd-list-deprecated.txt
@@ -1,4 +1,4 @@
-#PEN-UCDlist-v1.6-2024-09-11
+#PEN-UCDlist-v1.6-2024-09-19
 # This file contains lists suggested replacements for UCD1+ which are deprecated
 # deprecated_term  replacement_term
 em.IR.K.Brgamma em.line.Brgamma
diff --git a/ucd-list.txt b/ucd-list.txt
index 3325a1f..ccda7e2 100644
--- a/ucd-list.txt
+++ b/ucd-list.txt
@@ -1,4 +1,4 @@
-#PEN-UCDlist-v1.6-2024-09-11
+#PEN-UCDlist-v1.6-2024-09-19
 Q | arith                             |  Arithmetic quantities
 S | arith.diff                        |  Difference between two quantities described by the same UCD
 P | arith.factor                      |  Numerical factor