diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15abe32..8a673ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # CHANGELOG
 
+### v1.21
+ - Adds updated field-mapping-bib mapping for 'Contents', new mapping for 'Contents title'
+
 ### v1.20
  - Adds parallel field mappings to field-mapping-bib.json