diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5776df1..ad7e0fdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [0.X.X] - 2023-XX-XX
+* New Instruments
+  * REACH Dosimeter
 * Bug Fix
   * New window needs to be integer for calculate_imf_steadiness
 * Documentation