diff --git a/definitions/bufr/boot.def b/definitions/bufr/boot.def
index fbc700f45..ec775f2fd 100644
--- a/definitions/bufr/boot.def
+++ b/definitions/bufr/boot.def
@@ -13,7 +13,7 @@ transient setToMissingIfOutOfRange=0 : hidden;
 
 # This gets updated twice a year by WMO.
 # See https://community.wmo.int/activity-areas/wmo-codes/manual-codes/latest-version
-constant masterTablesVersionNumberLatest = 37;
+constant masterTablesVersionNumberLatest = 38;
 
 #negative value=not used
 transient inputDelayedDescriptorReplicationFactor={-1} : hidden;