diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1fce72f7..2db1eeac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@ All notable changes to this project will be documented in this file. Changes not
 
 - Add the `trailing_whitespace` rule in Swiftlint and autocorrect all the source files. ([#421](https://github.com/httpswift/swifter/pull/421)) by [@Vkt0r](https://github.com/Vkt0r)
 - Update the project for Xcode 11.1. ([#438](https://github.com/httpswift/swifter/pull/438)) by [@Vkt0r](https://github.com/Vkt0r)
+- Add optional 'Content-Type' to Data HttpResponse. ([#450](https://github.com/httpswift/swifter/pull/450)) by [@SoftwareEngineerChris](https://github.com/SoftwareEngineerChris)
 
 ## Changed