diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69bfce6a..99324b11 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 
 **Defects:**
 
+- `Accept:*` response not defaulting to valid application/json [\#356](https://github.com/NASA-PDS/registry-api/issues/356) [[s.high](https://github.com/NASA-PDS/registry-api/labels/s.high)]
 - api does not return information that OpenSearch says is public [\#355](https://github.com/NASA-PDS/registry-api/issues/355) [[s.high](https://github.com/NASA-PDS/registry-api/labels/s.high)]
 - API falsely reports 10000 hits for hits\>10000 [\#343](https://github.com/NASA-PDS/registry-api/issues/343) [[s.medium](https://github.com/NASA-PDS/registry-api/labels/s.medium)]
 - members of a bundle does not work on new test dataset [\#341](https://github.com/NASA-PDS/registry-api/issues/341) [[s.high](https://github.com/NASA-PDS/registry-api/labels/s.high)]