diff --git a/cif_core.dic b/cif_core.dic
index 1dda8bd..7506d62 100644
--- a/cif_core.dic
+++ b/cif_core.dic
@@ -25543,7 +25543,7 @@ save_refine_ls.abs_structure_rogers_su
          '_refine_ls_abs_structure_Rogers_su'
          '_refine.ls_abs_structure_Rogers_esd'
 
-    _definition.update            2021-03-03
+    _definition.update            2023-06-25
     _description.text
 ;
     Standard uncertainty of the measure of absolute structure
@@ -25553,7 +25553,7 @@ save_refine_ls.abs_structure_rogers_su
     _name.object_id               abs_structure_Rogers_su
     _name.linked_item_id          '_refine_ls.abs_structure_Rogers'
     _type.purpose                 SU
-    _type.source                  Related
+    _type.source                  Derived
     _type.container               Single
     _type.contents                Real
     _units.code                   none