diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09625b4..75dce7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - Added Juridische vorm [OP-3816] [OP-3820]
 - Add new organization types (interlokale vereniging, vervoerregioraad, zorgraad, bosgroep, woonmaatschappij); add werkingsgebied (dct:spatial) to registered organizations [OP-3828]
 - Rename generic organization types to "Vereniging algemeen" / "Vennootschap algemeen" [OP-3828]
+- Added "werkingsgebied" filter [OP-3812]
 
 ### Deploy notes
 ```
@@ -26,6 +27,11 @@ drc restart migrations
 drc restart resource cache
 scripts/reset-elastic.sh
 ```
+```
+drc restart migrations frontend
+# reindex elastic search:
+/bin/bash scripts/reset-elastic.sh
+```
 
 ## v1.40.0
 - Query to check missing address URI's [OP-3784]