diff --git a/CHANGELOG.md b/CHANGELOG.md
index f9a6514..976f53a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@
     - `ssl_certificate_verification`, which should bre replaced by `ssl_verification_mode`
     - [#213](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/213)
 
+## 4.20.5
+  - Add `x-elastic-product-origin` header to Elasticsearch requests [#211](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/211)
+
 ## 4.20.4
   - Fix issue where the `index` parameter was being ignored when using `response_type => aggregations` [#209](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/209)